diff --git a/src/plugins/cmakeprojectmanager/builddirmanager.cpp b/src/plugins/cmakeprojectmanager/builddirmanager.cpp
index ff05db54aff..6ed02e0eddc 100644
--- a/src/plugins/cmakeprojectmanager/builddirmanager.cpp
+++ b/src/plugins/cmakeprojectmanager/builddirmanager.cpp
@@ -332,6 +332,10 @@ CMakeConfig BuildDirManager::parsedConfiguration() const
         return m_cmakeCache;
     if (m_cmakeCache.isEmpty())
         m_cmakeCache = m_reader->takeParsedConfiguration();
+
+    for (auto &ci : m_cmakeCache)
+        ci.inCMakeCache = true;
+
     return m_cmakeCache;
 }
 
diff --git a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
index 658bab3c011..f637376d655 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp
@@ -273,6 +273,7 @@ QList<ConfigModel::DataItem> CMakeBuildConfiguration::completeCMakeConfiguration
         j.value = QString::fromUtf8(i.value);
         j.description = QString::fromUtf8(i.documentation);
         j.values = i.values;
+        j.inCMakeCache = i.inCMakeCache;
 
         j.isAdvanced = i.isAdvanced || i.type == CMakeConfigItem::INTERNAL;
         switch (i.type) {
@@ -308,6 +309,7 @@ void CMakeBuildConfiguration::setCurrentCMakeConfiguration(const QList<ConfigMod
         ni.value = i.value.toUtf8();
         ni.documentation = i.description.toUtf8();
         ni.isAdvanced = i.isAdvanced;
+        ni.inCMakeCache = i.inCMakeCache;
         ni.values = i.values;
         switch (i.type) {
         case CMakeProjectManager::ConfigModel::DataItem::BOOLEAN:
diff --git a/src/plugins/cmakeprojectmanager/cmakeconfigitem.h b/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
index 392d7276470..ebac479195a 100644
--- a/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
+++ b/src/plugins/cmakeprojectmanager/cmakeconfigitem.h
@@ -67,6 +67,7 @@ public:
     QByteArray key;
     Type type = STRING;
     bool isAdvanced = false;
+    bool inCMakeCache = false;
     QByteArray value; // converted to string as needed
     QByteArray documentation;
     QStringList values;
diff --git a/src/plugins/cmakeprojectmanager/configmodel.cpp b/src/plugins/cmakeprojectmanager/configmodel.cpp
index 70e560d7a31..88206f3d5cc 100644
--- a/src/plugins/cmakeprojectmanager/configmodel.cpp
+++ b/src/plugins/cmakeprojectmanager/configmodel.cpp
@@ -106,6 +106,7 @@ QVariant ConfigModel::data(const QModelIndex &index, int role) const
             QFont font;
             font.setItalic(item.isCMakeChanged);
             font.setBold(item.isUserNew);
+            font.setStrikeOut(!item.inCMakeCache && !item.isUserNew);
             return font;
         }
         default:
@@ -307,16 +308,16 @@ bool ConfigModel::hasCMakeChanges() const
 
 QList<ConfigModel::DataItem> ConfigModel::configurationChanges() const
 {
-    QList<DataItem> result;
     const QList<InternalDataItem> tmp
-            = Utils::filtered(m_configuration, [](const InternalDataItem &i) { return i.isUserChanged || i.isUserNew; });
-    foreach (const InternalDataItem &item, tmp) {
+            = Utils::filtered(m_configuration, [](const InternalDataItem &i) {
+        return i.isUserChanged || i.isUserNew || !i.inCMakeCache;
+    });
+    return Utils::transform(tmp, [](const InternalDataItem &item) {
         DataItem newItem(item);
         if (item.isUserChanged)
             newItem.value = item.newValue;
-        result << newItem;
-    }
-    return result;
+        return newItem;
+    });
 }
 
 ConfigModel::InternalDataItem &ConfigModel::itemAtRow(int row)
diff --git a/src/plugins/cmakeprojectmanager/configmodel.h b/src/plugins/cmakeprojectmanager/configmodel.h
index 5a1f97ef3e5..3730ac380e5 100644
--- a/src/plugins/cmakeprojectmanager/configmodel.h
+++ b/src/plugins/cmakeprojectmanager/configmodel.h
@@ -46,6 +46,7 @@ public:
         QString key;
         Type type = STRING;
         bool isAdvanced = false;
+        bool inCMakeCache = false;
         QString value;
         QString description;
         QStringList values;