diff --git a/installer/rpm/make_installer.sh b/installer/rpm/make_installer.sh
index a3d5b1a..892a650 100755
--- a/installer/rpm/make_installer.sh
+++ b/installer/rpm/make_installer.sh
@@ -14,6 +14,9 @@
 		REL=$REL.$i
 	fi
 done
+if [ "$REL" == "" ]; then
+	REL=1
+fi
 ARCH=$(uname -i)
 echo Building RPM FOR $VER-$REL-$ARCH
 rpmbuild -ba dub.spec --define "ver $VER" --define "rel $REL" --define="srcpath $DUB_PATH"