diff --git a/mozilla/docshell/base/appstrings.properties b/mozilla/docshell/base/appstrings.properties
index e534cbaef2c..c3d4a07f92b 100644
--- a/mozilla/docshell/base/appstrings.properties
+++ b/mozilla/docshell/base/appstrings.properties
@@ -20,7 +20,7 @@
 malformedURI=The URL is not valid and cannot be loaded.
 fileNotFound=The file %s cannot be found. Please check the location and try again.
 dnsNotFound=%s could not be found. Please check the name and try again.
-protocolNotFound=%s is not a registered protocol.
+protocolNotFound=%S is not a registered protocol.
 connectionFailure=The connection was refused when attempting to contact %s.
 netTimeout=The operation timed out when attempting to contact %s.
 redirectLoop=Redirection limit for this URL exceeded.  Unable to load the requested page.