diff --git a/lib/guard/jasmine.rb b/lib/guard/jasmine.rb
index 6606742..d1d0863 100644
--- a/lib/guard/jasmine.rb
+++ b/lib/guard/jasmine.rb
@@ -178,6 +178,8 @@ def jasmine_runner_available?(url)
     def phantomjs_bin_valid?(bin)
       if bin && !bin.empty?
         version = `#{ bin } --version`
+        # remove all but version from "1.5 (development)"
+        version = version.match(/(\d\.\d)/)[0]
 
         if !version
           notify_failure('PhantomJS executable missing', "PhantomJS executable doesn't exist at #{ bin }")