diff --git a/src/sfnt/pngshim.c b/src/sfnt/pngshim.c
index c7f8a290d..33712162e 100644
--- a/src/sfnt/pngshim.c
+++ b/src/sfnt/pngshim.c
@@ -406,10 +406,7 @@
 
     switch ( color_type )
     {
-    default:
-      /* Shouldn't happen, but ... */
-      FALL_THROUGH;
-
+    default:  /* Shouldn't happen, but ... */
     case PNG_COLOR_TYPE_RGB_ALPHA:
       png_set_read_user_transform_fn( png, premultiply_data );
       break;