diff --git a/src/plugins/compilationdatabaseprojectmanager/compilationdatabasetests.cpp b/src/plugins/compilationdatabaseprojectmanager/compilationdatabasetests.cpp
index 6b00f621441..6fff4947647 100644
--- a/src/plugins/compilationdatabaseprojectmanager/compilationdatabasetests.cpp
+++ b/src/plugins/compilationdatabaseprojectmanager/compilationdatabasetests.cpp
@@ -74,7 +74,7 @@ void CompilationDatabaseTests::testProject()
 
 void CompilationDatabaseTests::testProject_data()
 {
-    QTest::addColumn<QString>("projectFilePath");
+    QTest::addColumn<FilePath>("projectFilePath");
 
     addTestRow("qtc/compile_commands.json");
     addTestRow("llvm/compile_commands.json");