diff --git a/prepare_source b/prepare_source
index af05463..9ece7d7 100755
--- a/prepare_source
+++ b/prepare_source
@@ -32,4 +32,4 @@ apply_patches fixes_debian
 import_upstream_patches
 
 # Backporting for the 1592 release.
-version_suffix=gl0~bp1592
+version_suffix=gl1~bp1592