diff --git a/libs/clearlooks-newer/config.h b/libs/clearlooks-newer/config.h
index 4326e37ec1..b301c222d0 100644
--- a/libs/clearlooks-newer/config.h
+++ b/libs/clearlooks-newer/config.h
@@ -52,9 +52,6 @@
 /* Define to 1 if you have the <sys/types.h> header file. */
 #define HAVE_SYS_TYPES_H 1
 
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
 /* Name of package */
 #define PACKAGE "gtk-engines"