diff --git a/build/lib/tsb/builder.js b/build/lib/tsb/builder.js
index e7a2519d1c9..c039131a57d 100644
--- a/build/lib/tsb/builder.js
+++ b/build/lib/tsb/builder.js
@@ -521,10 +521,11 @@ class LanguageServiceHost {
         return old;
     }
     removeScriptSnapshot(filename) {
+        filename = normalize(filename);
+        this._log('removeScriptSnapshot', filename);
         this._filesInProject.delete(filename);
         this._filesAdded.delete(filename);
         this._projectVersion++;
-        filename = normalize(filename);
         delete this._fileNameToDeclaredModule[filename];
         return delete this._snapshots[filename];
     }
diff --git a/build/lib/tsb/builder.ts b/build/lib/tsb/builder.ts
index 509284d0cdc..53e9f597e51 100644
--- a/build/lib/tsb/builder.ts
+++ b/build/lib/tsb/builder.ts
@@ -629,10 +629,11 @@ class LanguageServiceHost implements ts.LanguageServiceHost {
 	}
 
 	removeScriptSnapshot(filename: string): boolean {
+		filename = normalize(filename);
+		this._log('removeScriptSnapshot', filename);
 		this._filesInProject.delete(filename);
 		this._filesAdded.delete(filename);
 		this._projectVersion++;
-		filename = normalize(filename);
 		delete this._fileNameToDeclaredModule[filename];
 		return delete this._snapshots[filename];
 	}