diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 510021bb7c..19c8e10ff0 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -1657,7 +1657,7 @@ else
 if CROSS_COMPILING
 gtk_update_icon_cache_program = ./native/native-update-icon-cache
 else
-gtk_update_icon_cache_program = ./gtk-update-icon-cache
+gtk_update_icon_cache_program = ./gtk-update-icon-cache$(EXEEXT)
 endif
 endif