diff --git a/testdata/07-confroot.tpkg b/testdata/07-confroot.tpkg
index 76ee43e6a..435aedff0 100644
Binary files a/testdata/07-confroot.tpkg and b/testdata/07-confroot.tpkg differ
diff --git a/util/configlexer.c b/util/configlexer.c
index 819212a28..5bb542a04 100644
--- a/util/configlexer.c
+++ b/util/configlexer.c
@@ -94,7 +94,7 @@ typedef unsigned int flex_uint32_t;
 
 #else	/* ! __cplusplus */
 
-#if __STDC__
+#ifdef __STDC__
 
 #define YY_USE_CONST