1 files changed, 2 insertions, 1 deletions
diff --git a/Source/cmGccDepfileLexerHelper.h b/Source/cmGccDepfileLexerHelper.h
index 07ca61d18..91132f5d0 100644
--- a/Source/cmGccDepfileLexerHelper.h
+++ b/Source/cmGccDepfileLexerHelper.h
@@ -29,7 +29,8 @@ private:
   enum class State
   {
     Rule,
-    Dependency
+    Dependency,
+    Failed,
   };
   State HelperState = State::Rule;
 };