1 files changed, 5 insertions, 0 deletions
diff --git a/src/plugins/cpptools/compileroptionsbuilder.cpp b/src/plugins/cpptools/compileroptionsbuilder.cpp
index 62abc4dd17..3c88cce384 100644
--- a/src/plugins/cpptools/compileroptionsbuilder.cpp
+++ b/src/plugins/cpptools/compileroptionsbuilder.cpp
@@ -65,6 +65,11 @@ QStringList CompilerOptionsBuilder::build(CppTools::ProjectFile::Kind fileKind,
                    return QStringList(););
     }
 
+    if (fileKind == ProjectFile::CXXHeader || fileKind == ProjectFile::CXXSource) {
+        QTC_ASSERT(m_projectPart.languageVersion > ProjectExplorer::LanguageVersion::LatestC,
+                   return QStringList(););
+    }
+
     add("-c");
 
     addWordWidth();