diff --git a/tools/setup/generate-test-credentials b/tools/setup/generate-test-credentials
index d418deaa05..8f070e1ec4 100755
--- a/tools/setup/generate-test-credentials
+++ b/tools/setup/generate-test-credentials
@@ -7,7 +7,7 @@ email=iago@zulip.com
 
 mkdir -p var/casper
 
-password=$(./manage.py print_initial_password "$email" | fgrep "$email" | awk '{ print $2 }')
+password=$(./manage.py print_initial_password "$email" | grep -F "$email" | awk '{ print $2 }')
 cat > var/casper/test_credentials.js <<EOF
 // Generated by tools/setup/generate-test-credentials
 var test_credentials = {default_user: {username: '$email', password: '$password'}};