diff --git a/src/config.h.in b/src/config.h.in
index e8d6183..e92cc5e 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -452,3 +452,6 @@
 
 /* Define if Xutf8SetWMProperties() is in an X library. */
 #undef HAVE_XUTF8SETWMPROPERTIES
+
+/* Define if GResource is used to load icons */
+#undef USE_GRESOURCE