diff --git a/.changeset/tame-balloons-walk.md b/.changeset/tame-balloons-walk.md
new file mode 100644
index 0000000000..6dc6a929ef
--- /dev/null
+++ b/.changeset/tame-balloons-walk.md
@@ -0,0 +1,5 @@
+---
+"app-builder-lib": patch
+---
+
+fix: Treat cscLink empty string same as null
diff --git a/packages/app-builder-lib/src/winPackager.ts b/packages/app-builder-lib/src/winPackager.ts
index 7b8a0efce9..b2ed8fa260 100644
--- a/packages/app-builder-lib/src/winPackager.ts
+++ b/packages/app-builder-lib/src/winPackager.ts
@@ -63,7 +63,7 @@ export class WinPackager extends PlatformPackager<WindowsConfiguration> {
     }
 
     const cscLink = this.getCscLink("WIN_CSC_LINK")
-    if (cscLink == null) {
+    if (cscLink == null || cscLink === '') {
       return Promise.resolve(null)
     }