diff --git a/tools/code-analyzer/src/lib/scan-changes.ts b/tools/code-analyzer/src/lib/scan-changes.ts
index bb1c60dff3e..25c3a0fac3f 100644
--- a/tools/code-analyzer/src/lib/scan-changes.ts
+++ b/tools/code-analyzer/src/lib/scan-changes.ts
@@ -136,7 +136,7 @@ export const scanForChanges = async (
 		base,
 		compareVersion,
 		Logger.error,
-		[ 'tools', ...exclude ]
+		[ 'tools', ...( exclude ? exclude : [] ) ]
 	);
 
 	// Only checkout the compare version if we're in CLI mode.