diff --git a/frontend/main.c b/frontend/main.c
index cfcd83083..08aafe300 100644
--- a/frontend/main.c
+++ b/frontend/main.c
@@ -2420,16 +2420,15 @@ wet_output_set_color_format(struct weston_output *output,
 
 	entry = weston_enum_map_find_name(color_formats, str);
 	if (!entry) {
-		char *mask_to_str = NULL;
+		unsigned int i;
+
 		weston_log("Error in config for output '%s': '%s' is not a "
 			   "valid color format. Try one of: ",
 			   output->name, str);
 
-		mask_to_str = bits_to_str(WESTON_COLOR_FORMAT_ALL_MASK,
-					  weston_color_format_to_str);
-		weston_log_continue("%s\n", mask_to_str);
-
-		free(mask_to_str);
+		for (i = 0; i < ARRAY_LENGTH(color_formats); i++)
+			weston_log_continue(" %s", color_formats[i].name);
+		weston_log_continue("\n");
 		free(str);
 		return -1;
 	}