diff --git a/assembly-release/sign-release.sh b/assembly-release/sign-release.sh
index 0c959ac8a..83e94d4fc 100755
--- a/assembly-release/sign-release.sh
+++ b/assembly-release/sign-release.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-export rcstring="r1"
+export rcstring="-rc1"
 export vstring="6.1.3"
 
 # for rc releases we rename the release files