diff --git a/rubygem-pdf-core.yaml b/rubygem-pdf-core.yaml
index e601317..bf5b4af 100644
--- a/rubygem-pdf-core.yaml
+++ b/rubygem-pdf-core.yaml
@@ -1,4 +1,4 @@
-version-control: github
+version_control: github
 src_repo: prawnpdf/pdf-core
 tag_prefix: "^"
 seperator: "."