diff --git a/bin/git-vendor b/bin/git-vendor
index 2618673..8917d69 100755
--- a/bin/git-vendor
+++ b/bin/git-vendor
@@ -41,7 +41,7 @@ fi
 # Simulate an associative array (for older versions of bash)
 var_name()
 {
-    printf "name_$1" | tr -c '[A-Za-z0-9]' '_'
+    echo "name_$1" | tr -c '[A-Za-z0-9]' '_'
 }
 
 vendor_names_from_log()