diff --git a/CCache/Makefile.in b/CCache/Makefile.in
index 438ec19f5..07b86f0f4 100644
--- a/CCache/Makefile.in
+++ b/CCache/Makefile.in
@@ -1,3 +1,4 @@
+datarootdir = @datarootdir@
 srcdir=@srcdir@
 VPATH=@srcdir@