diff --git a/packages/core/src/utils/shell-utils.test.ts b/packages/core/src/utils/shell-utils.test.ts
index e87c90b..77e60e3 100644
--- a/packages/core/src/utils/shell-utils.test.ts
+++ b/packages/core/src/utils/shell-utils.test.ts
@@ -320,7 +320,7 @@ describe('escapeShellArg', () => {
 
     it('should handle empty strings', () => {
       const result = escapeShellArg('', 'bash');
-      expect(result).toBe('');
+      expect(result).toBe("''");
       expect(mockQuote).not.toHaveBeenCalled();
     });
   });
@@ -339,7 +339,7 @@ describe('escapeShellArg', () => {
 
       it('should handle empty strings', () => {
         const result = escapeShellArg('', 'cmd');
-        expect(result).toBe('');
+        expect(result).toBe('""');
       });
     });
 
@@ -361,7 +361,7 @@ describe('escapeShellArg', () => {
 
       it('should handle empty strings', () => {
         const result = escapeShellArg('', 'powershell');
-        expect(result).toBe('');
+        expect(result).toBe("''");
       });
     });
   });
diff --git a/packages/core/src/utils/shell-utils.ts b/packages/core/src/utils/shell-utils.ts
index e0e62ec..91dbc48 100644
--- a/packages/core/src/utils/shell-utils.ts
+++ b/packages/core/src/utils/shell-utils.ts
@@ -89,8 +89,8 @@ export const isWindows = () => os.platform() === 'win32';
  * @returns The shell-escaped string.
  */
 export function escapeShellArg(arg: string, shell: ShellType): string {
-  if (!arg) {
-    return '';
+  if (arg === '') {
+    return shell === 'cmd' ? '""' : "''";
   }
 
   switch (shell) {