diff --git a/src/java_lang_reflect_Array.cc b/src/java_lang_reflect_Array.cc
index 1d8b526..3bf2680 100644
--- a/src/java_lang_reflect_Array.cc
+++ b/src/java_lang_reflect_Array.cc
@@ -46,7 +46,7 @@
   }
   std::string sub_array_descriptor(ClassHelper(array_class).GetDescriptor() + 1);
   ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
-  Class* sub_array_class = class_linker->FindClass(sub_array_descriptor,
+  Class* sub_array_class = class_linker->FindClass(sub_array_descriptor.c_str(),
                                                    array_class->GetClassLoader());
   if (sub_array_class == NULL) {
     CHECK(Thread::Current()->IsExceptionPending());
@@ -106,7 +106,7 @@
 
   // Find/generate the array class.
   ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
-  Class* array_class = class_linker->FindClass(descriptor, element_class->GetClassLoader());
+  Class* array_class = class_linker->FindClass(descriptor.c_str(), element_class->GetClassLoader());
   if (array_class == NULL) {
     CHECK(Thread::Current()->IsExceptionPending());
     return NULL;
@@ -134,7 +134,7 @@
   descriptor += ClassHelper(element_class).GetDescriptor();
 
   ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
-  Class* array_class = class_linker->FindClass(descriptor, element_class->GetClassLoader());
+  Class* array_class = class_linker->FindClass(descriptor.c_str(), element_class->GetClassLoader());
   if (array_class == NULL) {
     CHECK(Thread::Current()->IsExceptionPending());
     return NULL;