Index: client/as-compose.c
--- client/as-compose.c.orig
+++ client/as-compose.c
@@ -364,7 +364,7 @@ main (int argc, char **argv)
 
 	/* set defaults */
 	if (prefix == NULL)
-		prefix = g_strdup ("/usr");
+		prefix = g_strdup ("${LOCALBASE}");
 	if (output_dir == NULL)
 		output_dir = g_build_filename (prefix, "share/app-info/xmls", NULL);
 	if (icons_dir == NULL)