diff --git a/clients/keramik/configure.in.in b/clients/keramik/configure.in.in
index a3ed00c262..1ac24c7106 100644
--- a/clients/keramik/configure.in.in
+++ b/clients/keramik/configure.in.in
@@ -1,3 +1,3 @@
 dnl Check for the X shaped windows extension
-AC_CHECK_HEADERS(X11/extensions/shape.h)
+KDE_CHECK_HEADERS(X11/extensions/shape.h)