diff --git a/src/compiler/driver/compiler_driver.h b/src/compiler/driver/compiler_driver.h
index 250532b..c1e449e 100644
--- a/src/compiler/driver/compiler_driver.h
+++ b/src/compiler/driver/compiler_driver.h
@@ -267,7 +267,7 @@
   }
 
   // Checks if class specified by type_idx is one of the image_classes_
-  bool IsImageClass(const std::string& descriptor) const;
+  bool IsImageClass(const char* descriptor) const;
 
   void RecordClassStatus(ClassReference ref, CompiledClass* compiled_class);