diff --git a/scalar.c b/scalar.c
index f768046..af64f75 100644
--- a/scalar.c
+++ b/scalar.c
@@ -2,7 +2,7 @@
  * The Scalar command-line interface.
  */
 
-#include "cache.h"
+#include "git-compat-util.h"
 #include "abspath.h"
 #include "gettext.h"
 #include "parse-options.h"