diff --git a/src/plugins/clangtools/clangtoolssettings.h b/src/plugins/clangtools/clangtoolssettings.h
index 36da00d2932..aaa52011b10 100644
--- a/src/plugins/clangtools/clangtoolssettings.h
+++ b/src/plugins/clangtools/clangtoolssettings.h
@@ -34,7 +34,7 @@
 namespace ClangTools {
 namespace Internal {
 
-const char diagnosticConfigIdKey[] = "DiagnosticConfigId";
+const char diagnosticConfigIdKey[] = "DiagnosticConfig";
 
 class RunSettings
 {