diff --git a/objc/runtime.h b/objc/runtime.h
index d415ee2..0e25c4b 100644
--- a/objc/runtime.h
+++ b/objc/runtime.h
@@ -231,7 +231,7 @@ objc_property_t* class_copyPropertyList(Class cls, unsigned int *outCount);
  * outCount argument is set to the number of protocols returned.  The caller is
  * responsible for freeing the returned buffer.
  */
-Protocol *const* class_copyProtocolList(Class cls, unsigned int *outCount);
+Protocol *__unsafe_unretained* class_copyProtocolList(Class cls, unsigned int *outCount);
 
 /**
  * Creates an instance of this class, allocating memory using malloc.
@@ -613,7 +613,7 @@ objc_property_t *protocol_copyPropertyList(Protocol *p, unsigned int *count);
  * number of protocols in the array being returned via the last argument.  The
  * caller is responsible for freeing this array.
  */
-Protocol *const*protocol_copyProtocolList(Protocol *p, unsigned int *count);
+Protocol *__unsafe_unretained*protocol_copyProtocolList(Protocol *p, unsigned int *count);
 
 /**
  * Returns all of the protocols that the runtime is aware of.  Note that
@@ -623,7 +623,7 @@ Protocol *const*protocol_copyProtocolList(Protocol *p, unsigned int *count);
  *
  * The caller is responsible for freeing the returned array.
  */
-Protocol *const*objc_copyProtocolList(unsigned int *outCount);
+Protocol *__unsafe_unretained*objc_copyProtocolList(unsigned int *outCount);
 /**
  * Returns the method description for the specified method within a given
  * protocol.
diff --git a/protocol.c b/protocol.c
index d2791c5..28835ad 100644
--- a/protocol.c
+++ b/protocol.c
@@ -329,7 +329,7 @@ struct objc_method_description *protocol_copyMethodDescriptionList(Protocol *p,
 	return out;
 }
 
-Protocol*const* protocol_copyProtocolList(Protocol *p, unsigned int *count)
+Protocol*__unsafe_unretained* protocol_copyProtocolList(Protocol *p, unsigned int *count)
 {
 	if (NULL == p) { return NULL; }
 	*count = 0;
@@ -474,7 +474,7 @@ BOOL protocol_isEqual(Protocol *p, Protocol *other)
 	return NO;
 }
 
-Protocol*const* objc_copyProtocolList(unsigned int *outCount)
+Protocol*__unsafe_unretained* objc_copyProtocolList(unsigned int *outCount)
 {
 	unsigned int total = known_protocol_table->table_used;
 	Protocol **p = calloc(sizeof(Protocol*), known_protocol_table->table_used);
diff --git a/runtime.c b/runtime.c
index f2ffcb2..290e3fb 100644
--- a/runtime.c
+++ b/runtime.c
@@ -235,7 +235,7 @@ Method * class_copyMethodList(Class cls, unsigned int *outCount)
 	return list;
 }
 
-Protocol*const* class_copyProtocolList(Class cls, unsigned int *outCount)
+Protocol*__unsafe_unretained* class_copyProtocolList(Class cls, unsigned int *outCount)
 { 
 	CHECK_ARG(cls);
 	struct objc_protocol_list *protocolList = NULL;