diff --git a/dev_setup.sh b/dev_setup.sh
index 311dbae2de..08b5cdba9b 100755
--- a/dev_setup.sh
+++ b/dev_setup.sh
@@ -16,7 +16,7 @@
 ##########################################################################
 
 # Set a default locale to handle output from commands reliably
-export LANG=C
+export LANG=C.UTF-8
 
 # exit on any error
 set -Ee