diff --git a/build b/build
index 11d823e396f8d0e2e4978700a72426fdd3373749..4f99f738305980817a61da9ec00019fad763efe4 100755
--- a/build
+++ b/build
@@ -18,6 +18,7 @@ fi
 # Get package version
 version=$(dpkg-parsechangelog -S Version)
 mainversion=${version%%.*}
+mainversion=${mainversion#*:}
 
 # drop any previous hypra patch list
 sed -i -e '/^# hypra/,$d' debian/patches/series