diff --git a/src/plugins/clangformat/clangformat.qbs b/src/plugins/clangformat/clangformat.qbs
index 37bb4c1f647..66e481785e5 100644
--- a/src/plugins/clangformat/clangformat.qbs
+++ b/src/plugins/clangformat/clangformat.qbs
@@ -33,5 +33,6 @@ QtcPlugin {
         "clangformatplugin.cpp",
         "clangformatplugin.h",
         "clangformatutils.h",
+        "clangformatutils.cpp",
     ]
 }