diff --git a/parallel_hashmap/phmap.h b/parallel_hashmap/phmap.h
index d02f846..d72ed76 100644
--- a/parallel_hashmap/phmap.h
+++ b/parallel_hashmap/phmap.h
@@ -1853,8 +1853,10 @@ class raw_hash_set
     }
 
 private:
+#if !defined(__clang__)
     template <class Container, typename Enabler>
     friend struct phmap::priv::hashtable_debug_internal::HashtableDebugAccess;
+#endif
 
     template <class K = key_type>
     bool find_impl(const key_arg<K>& PHMAP_RESTRICT key, size_t hashval, size_t& PHMAP_RESTRICT offset) {
@@ -3738,8 +3740,10 @@ class parallel_hash_set
 #endif
 
 private:
+#if !defined(__clang__)
     template <class Container, typename Enabler>
     friend struct phmap::priv::hashtable_debug_internal::HashtableDebugAccess;
+#endif
 
     struct FindElement 
     {