diff --git a/src/util.ts b/src/util.ts
index 1c42eaf4d5..ca5cb47b51 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -101,7 +101,7 @@ export function preferLocalBin(
 // }
 
 export function quote(arg: string): string {
-  if (/^[\w/.-@:=]+$/.test(arg) || arg === '') {
+  if (/^[\w/.\-@:=]+$/.test(arg) || arg === '') {
     return arg
   }
   return (
@@ -120,7 +120,7 @@ export function quote(arg: string): string {
 }
 
 export function quotePowerShell(arg: string): string {
-  if (/^[\w/.-]+$/.test(arg) || arg === '') {
+  if (/^[\w/.\-]+$/.test(arg) || arg === '') {
     return arg
   }
   return `'` + arg.replace(/'/g, "''") + `'`