diff --git a/Externals.cfg b/Externals.cfg
index bba534cf21..c8c5295039 100644
--- a/Externals.cfg
+++ b/Externals.cfg
@@ -3,7 +3,7 @@ protocol = git
 repo_url = https://github.com/NOAA-EMC/regional_workflow
 # Specify either a branch name or a hash but not both.
 #branch = develop
-hase = de1220b
+hash = de1220b
 local_path = regional_workflow
 required = True