diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index c2491dba3b..076e1a2418 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -408,7 +408,7 @@ module Homebrew
     resource.owner = Resource.new(formula.name)
     forced_version = new_version && new_version != resource.version
     resource.version = new_version if forced_version
-    odie "No `--version=` argument specified!" if resource.version.blank?
+    odie "Couldn't identify version, specify it using `--version=`." if resource.version.blank?
     [resource.fetch, forced_version]
   end
 
@@ -436,6 +436,9 @@ module Homebrew
       specs[:tag] = tag if tag.present?
       version = Version.detect(url, **specs)
     end
+
+    return if version.null?
+
     check_throttle(formula, version)
     check_closed_pull_requests(formula, tap_remote_repo, args: args, version: version)
   end