diff --git a/engines/lab/resource.cpp b/engines/lab/resource.cpp
index 6142878afb5..278222f85c9 100644
--- a/engines/lab/resource.cpp
+++ b/engines/lab/resource.cpp
@@ -237,7 +237,7 @@ Common::String Resource::readString(Common::File *file) {
 	}
 
 	Common::String result = str;
-	delete str;
+	delete[] str;
 	return result;
 }