diff --git a/_config b/_config
index 8acd3c9..9fc0d80 100644
--- a/_config
+++ b/_config
@@ -143,7 +143,7 @@ Substitute: wallpaper-branding-openSUSE wallpaper-branding-SLE
 %define is_opensuse  1
 %define is_backports 1
 
-%if "%_project" == "openSUSE:Backports:SLE-16.0" || "%_project" == "openSUSE:Backports:SLE-16.0:git"
+%if 0%{?_is_in_project}
 Macros:
 %vendor openSUSE
 %distribution SUSE Linux Enterprise 16
@@ -164,7 +164,7 @@ Macros:
 
 # Leap specific package list, the same list with excludebuild must add to Backports project
 # Most of package should be built in Backports
-%if "%_project" == "openSUSE:Backports:SLE-16.0" || "%_project" == "openSUSE:Backports:SLE-16.0:git"
+%if 0%{?_is_in_project}
 # we build ffado:ffado-mixer for openSUSE, the main one is built in SLFO
 BuildFlags: excludebuild:ffado
 # build gpgme:qt flavor for qt5 support