diff --git a/gsk/gl/gskgliconcache.c b/gsk/gl/gskgliconcache.c
index 06c8a3ae63..95dc3d722b 100644
--- a/gsk/gl/gskgliconcache.c
+++ b/gsk/gl/gskgliconcache.c
@@ -17,6 +17,7 @@ typedef struct
 static void
 icon_data_free (gpointer p)
 {
+  g_free (p);
 }
 
 void