diff --git a/docs/PRIMARY_PROTOCOL.md b/docs/PRIMARY_PROTOCOL.md
index 4ad2488b3845a7945df878689be6deb2c11c9994..29eb308ef2b92abf90fc5fb567a6673f3908383e 100644
--- a/docs/PRIMARY_PROTOCOL.md
+++ b/docs/PRIMARY_PROTOCOL.md
@@ -1,4 +1,4 @@
-# BrowserID Primary IdP  Protocol
+# BrowserID Primary IdP Protocol
 
 ## 1. Overview