diff --git a/src/centpkg/__init__.py b/src/centpkg/__init__.py
index 2d3cbec..c3c1e2f 100644
--- a/src/centpkg/__init__.py
+++ b/src/centpkg/__init__.py
@@ -57,7 +57,12 @@ class Commands(pyrpkg.Commands):
                             ' %s' % self.branch_merge)
         self._distval = osver
         self._distval = self._distval.replace('.', '_')
-        self._disttag = 'el%s' % self._distval
+
+        if self._is_sigbranch():
+            self._disttag = self.branch_merge
+        else:
+            self._disttag = 'el%s' % self._distval
+
         self._rpmdefines = ["--define '_topdir {0}'".format(self.path),
                             "--define '_srcrpmdir {0}'".format(self.path),
                             "--define '_rpmdir {0}'".format(self.path),