diff --git a/rubygem-method_source.yaml b/rubygem-method_source.yaml
index 5e39c9c..78c7b8b 100644
--- a/rubygem-method_source.yaml
+++ b/rubygem-method_source.yaml
@@ -1,4 +1,4 @@
 version_control:NA
 src_repo:NA
-tag_prefix:
+tag_prefix:""
 seperator:"."