diff --git a/_config b/_config
index c0ec84b..9d1d479 100644
--- a/_config
+++ b/_config
@@ -76,7 +76,7 @@ Macros:
 %endif
 
 # SUSE SLFO specific change
-%if "%_project" == "SUSE:SLFO:Main:Build" || "%{sub %_project 1 36}" == "SUSE:SLFO:Main:Staging"
+%if "%_project" == "SUSE:SLFO:Main:Build" || "%{sub %_project 1 22}" == "SUSE:SLFO:Main:Staging"
 
 # no mono on SLFO
 BuildFlags: excludebuild:gettext-runtime:gettext-csharp