diff --git a/setup.py b/setup.py
index 069af42..34efbc8 100644
--- a/setup.py
+++ b/setup.py
@@ -11,12 +11,12 @@ def get_current_version_tag():
     tags = str(output, "utf-8").strip().split("\n")
 
     version_tags = [tag for tag in tags if re.match(r"^v?(\d*\.){2}\d$", tag)]
-    dev_tags = [tag for tag in tags if re.match(r"^v?(\d*\.){2}\d-\d*-[a-z\d]{8}$", tag)]
+    rc_tags = [tag for tag in tags if re.match(r"^v?(\d*\.){2}\d*-rc\.\d*$", tag)]
 
     if len(version_tags) == 1:
         return version_tags.pop()[1:]
-    elif len(dev_tags) == 1:
-        base_tag, num_commits = dev_tags.pop().split("-")[:2]
+    elif len(rc_tags) == 1:
+        base_tag, num_commits = rc_tags.pop().split("-rc.")[:2]
         return "{}.dev{}".format(base_tag, num_commits)[1:]
     else:
         return "0.0.0.dev0"