diff --git a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
index 8bed2fb1bd5..2ef96068916 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
@@ -183,6 +183,7 @@ CMakeBuildSettingsWidget::CMakeBuildSettingsWidget(CMakeBuildConfiguration *bc)
     m_configTextFilterModel(new CategorySortFilterModel(this))
 {
     QTC_CHECK(bc);
+    auto buildSystem = static_cast<CMakeBuildSystem *>(bc->buildSystem());
 
     auto vbox = new QVBoxLayout(this);
     vbox->setContentsMargins(0, 0, 0, 0);
@@ -200,8 +201,8 @@ CMakeBuildSettingsWidget::CMakeBuildSettingsWidget(CMakeBuildConfiguration *bc)
     });
 
     auto buildTypeAspect = bc->aspect<BuildTypeAspect>();
-    connect(buildTypeAspect, &BaseAspect::changed, this, [this, buildTypeAspect]() {
-        if (!m_buildConfiguration->isMultiConfig()) {
+    connect(buildTypeAspect, &BaseAspect::changed, this, [this, buildSystem, buildTypeAspect] {
+        if (!buildSystem->isMultiConfig()) {
             CMakeConfig config;
             config << CMakeConfigItem("CMAKE_BUILD_TYPE", buildTypeAspect->value().toUtf8());
 
@@ -355,8 +356,6 @@ CMakeBuildSettingsWidget::CMakeBuildSettingsWidget(CMakeBuildConfiguration *bc)
         }.setSpacing(0)
     }.attachTo(details, false);
 
-    auto buildSystem = static_cast<CMakeBuildSystem *>(bc->buildSystem());
-
     updateAdvancedCheckBox();
     setError(buildSystem->error());
     setWarning(buildSystem->warning());
@@ -1196,7 +1195,7 @@ CMakeBuildConfiguration::CMakeBuildConfiguration(Target *target, Id id)
         const Kit *k = target->kit();
 
         CommandLine cmd = defaultInitialCMakeCommand(k, info.typeName);
-        setIsMultiConfig(CMakeGeneratorKitAspect::isMultiConfigGenerator(k));
+        m_buildSystem->setIsMultiConfig(CMakeGeneratorKitAspect::isMultiConfigGenerator(k));
 
         // Android magic:
         if (DeviceTypeKitAspect::deviceTypeId(k) == Android::Constants::ANDROID_DEVICE_TYPE) {
@@ -1286,8 +1285,6 @@ CMakeBuildConfiguration::CMakeBuildConfiguration(Target *target, Id id)
         setInitialCMakeArguments(cmd.splitArguments());
         setCMakeBuildType(info.typeName);
     });
-
-    setIsMultiConfig(CMakeGeneratorKitAspect::isMultiConfigGenerator(target->kit()));
 }
 
 CMakeBuildConfiguration::~CMakeBuildConfiguration()
@@ -1660,7 +1657,7 @@ QString CMakeBuildConfiguration::cmakeBuildType() const
                 ->setCMakeBuildType(QString::fromUtf8(it->value));
     };
 
-    if (!isMultiConfig())
+    if (!m_buildSystem->isMultiConfig())
         setBuildTypeFromConfig(configurationChanges());
 
     QString cmakeBuildType = aspect<BuildTypeAspect>()->value();
@@ -1682,7 +1679,7 @@ QString CMakeBuildConfiguration::cmakeBuildType() const
         config = initialCMakeConfiguration();
     }
 
-    if (!config.isEmpty() && !isMultiConfig())
+    if (!config.isEmpty() && !m_buildSystem->isMultiConfig())
         setBuildTypeFromConfig(config);
 
     return cmakeBuildType;
@@ -1698,16 +1695,6 @@ void CMakeBuildConfiguration::setCMakeBuildType(const QString &cmakeBuildType, b
     }
 }
 
-bool CMakeBuildConfiguration::isMultiConfig() const
-{
-    return m_isMultiConfig;
-}
-
-void CMakeBuildConfiguration::setIsMultiConfig(bool isMultiConfig)
-{
-    m_isMultiConfig = isMultiConfig;
-}
-
 namespace Internal {
 
 // ----------------------------------------------------------------------
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
index e1592de2055..7e9bac08816 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
+++ b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.h
@@ -73,9 +73,6 @@ public:
     QString cmakeBuildType() const;
     void setCMakeBuildType(const QString &cmakeBuildType, bool quiet = false);
 
-    bool isMultiConfig() const;
-    void setIsMultiConfig(bool isMultiConfig);
-
     QStringList additionalCMakeArguments() const;
     void setAdditionalCMakeArguments(const QStringList &args);
     void filterConfigArgumentsFromAdditionalCMakeArguments();
@@ -103,8 +100,6 @@ private:
     CMakeConfig m_configurationChanges;
     Internal::CMakeBuildSystem *m_buildSystem = nullptr;
 
-    bool m_isMultiConfig = false;
-
     friend class Internal::CMakeBuildSettingsWidget;
     friend class Internal::CMakeBuildSystem;
 };
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
index cd537172c8e..afda21acb36 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildstep.cpp
@@ -406,7 +406,7 @@ CommandLine CMakeBuildStep::cmakeCommand() const
 
     auto bs = qobject_cast<CMakeBuildSystem*>(buildSystem());
     auto bc = qobject_cast<CMakeBuildConfiguration*>(buildConfiguration());
-    if (bc && bs && bs->isMultiConfig()) {
+    if (bc && bs && bs->isMultiConfigReader()) {
         cmd.addArg("--config");
         cmd.addArg(bc->cmakeBuildType());
     }
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
index 51593d9f84f..3ed4d1dbf94 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
@@ -200,6 +200,8 @@ CMakeBuildSystem::CMakeBuildSystem(CMakeBuildConfiguration *bc)
     connect(&m_reader, &FileApiReader::dirty, this, &CMakeBuildSystem::becameDirty);
 
     wireUpConnections();
+
+    m_isMultiConfig = CMakeGeneratorKitAspect::isMultiConfigGenerator(bc->kit());
 }
 
 CMakeBuildSystem::~CMakeBuildSystem()
@@ -1060,6 +1062,16 @@ bool CMakeBuildSystem::filteredOutTarget(const CMakeBuildTarget &target)
 }
 
 bool CMakeBuildSystem::isMultiConfig() const
+{
+    return m_isMultiConfig;
+}
+
+void CMakeBuildSystem::setIsMultiConfig(bool isMultiConfig)
+{
+    m_isMultiConfig = isMultiConfig;
+}
+
+bool CMakeBuildSystem::isMultiConfigReader() const
 {
     return m_reader.isMultiConfig();
 }
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildsystem.h b/src/plugins/cmakeprojectmanager/cmakebuildsystem.h
index 2972259ff2d..0b175e14973 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildsystem.h
+++ b/src/plugins/cmakeprojectmanager/cmakebuildsystem.h
@@ -104,6 +104,9 @@ public:
     static bool filteredOutTarget(const CMakeBuildTarget &target);
 
     bool isMultiConfig() const;
+    void setIsMultiConfig(bool isMultiConfig);
+
+    bool isMultiConfigReader() const;
     bool usesAllCapsTargets() const;
 
     CMakeProject *project() const;
@@ -184,6 +187,8 @@ private:
     bool m_waitingForParse = false;
     bool m_combinedScanAndParseResult = false;
 
+    bool m_isMultiConfig = false;
+
     ParseGuard m_currentGuard;
 
     CppEditor::CppProjectUpdater *m_cppCodeModelUpdater = nullptr;
diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.cpp b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
index aa78dd534e7..0d2fb14be55 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
@@ -136,7 +136,7 @@ MakeInstallCommand CMakeProject::makeInstallCommand(const Target *target,
     if (bs && bc) {
         if (bs->usesAllCapsTargets())
             installTarget = "INSTALL";
-        if (bs->isMultiConfig())
+        if (bs->isMultiConfigReader())
             config << "--config" << bc->cmakeBuildType();
     }