diff --git a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
index 3f40ca0b92d..7b2d8eb5690 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
@@ -519,7 +519,7 @@ void CMakeBuildSettingsWidget::updateButtonState()
                     break;
                 case CMakeProjectManager::ConfigModel::DataItem::UNKNOWN:
                 default:
-                    ni.type = CMakeConfigItem::INTERNAL;
+                    ni.type = CMakeConfigItem::UNINITIALIZED;
                     break;
                 }
                 return ni;
diff --git a/src/plugins/cmakeprojectmanager/cmakeconfigitem.cpp b/src/plugins/cmakeprojectmanager/cmakeconfigitem.cpp
index f979c283f35..4887bd130dd 100644
--- a/src/plugins/cmakeprojectmanager/cmakeconfigitem.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeconfigitem.cpp
@@ -145,9 +145,11 @@ CMakeConfigItem::Type CMakeConfigItem::typeStringToType(const QByteArray &type)
         return CMakeConfigItem::PATH;
     if (type == "STATIC")
         return CMakeConfigItem::STATIC;
+    if (type == "INTERNAL")
+        return CMakeConfigItem::INTERNAL;
 
-    QTC_CHECK(type == "INTERNAL" || type == "UNINITIALIZED");
-    return CMakeConfigItem::INTERNAL;
+    QTC_CHECK(type == "UNINITIALIZED");
+    return CMakeConfigItem::UNINITIALIZED;
 }
 
 QString CMakeConfigItem::typeToTypeString(const CMakeConfigItem::Type t)
@@ -163,8 +165,10 @@ QString CMakeConfigItem::typeToTypeString(const CMakeConfigItem::Type t)
         return {"INTERNAL"};
     case CMakeProjectManager::CMakeConfigItem::STATIC:
         return {"STATIC"};
-    case CMakeConfigItem::BOOL:
+    case CMakeProjectManager::CMakeConfigItem::BOOL:
         return {"BOOL"};
+    case CMakeProjectManager::CMakeConfigItem::UNINITIALIZED:
+        return {"UNINITIALIZED"};
     }
     QTC_CHECK(false);
     return {};
@@ -418,6 +422,9 @@ QString CMakeConfigItem::toString(const Utils::MacroExpander *expander) const
     case CMakeProjectManager::CMakeConfigItem::INTERNAL:
         typeStr = QLatin1String("INTERNAL");
         break;
+    case CMakeProjectManager::CMakeConfigItem::UNINITIALIZED:
+        typeStr = QLatin1String("UNINITIALIZED");
+        break;
     case CMakeProjectManager::CMakeConfigItem::STRING:
     default:
         typeStr = QLatin1String("STRING");
diff --git a/src/plugins/cmakeprojectmanager/cmakeconfigitem.h b/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
index 10c7651f6f7..7da405a48d8 100644
--- a/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
+++ b/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
@@ -45,7 +45,7 @@ namespace CMakeProjectManager {
 
 class CMAKE_EXPORT CMakeConfigItem {
 public:
-    enum Type { FILEPATH, PATH, BOOL, STRING, INTERNAL, STATIC };
+    enum Type { FILEPATH, PATH, BOOL, STRING, INTERNAL, STATIC, UNINITIALIZED };
     CMakeConfigItem();
     CMakeConfigItem(const QByteArray &k, Type t, const QByteArray &d, const QByteArray &v, const QStringList &s = {});
     CMakeConfigItem(const QByteArray &k, const QByteArray &v);
diff --git a/src/plugins/cmakeprojectmanager/configmodel.h b/src/plugins/cmakeprojectmanager/configmodel.h
index 8fb621c2ea0..a5cb94612e5 100644
--- a/src/plugins/cmakeprojectmanager/configmodel.h
+++ b/src/plugins/cmakeprojectmanager/configmodel.h
@@ -101,7 +101,7 @@ public:
                     cmi.type = CMakeConfigItem::STRING;
                     break;
                 case DataItem::UNKNOWN:
-                    cmi.type = CMakeConfigItem::INTERNAL;
+                    cmi.type = CMakeConfigItem::UNINITIALIZED;
                     break;
             }
             cmi.isUnset = isUnset;