diff --git a/tools/aapt2/Resource.h b/tools/aapt2/Resource.h
index 8fe0eb3..cf93870 100644
--- a/tools/aapt2/Resource.h
+++ b/tools/aapt2/Resource.h
@@ -138,7 +138,7 @@
   uint32_t id;
 
   ResourceId();
-  ResourceId(const ResourceId& rhs);
+  ResourceId(const ResourceId& rhs) = default;
   ResourceId(uint32_t res_id);  // NOLINT(google-explicit-constructor)
   ResourceId(uint8_t p, uint8_t t, uint16_t e);
 
@@ -222,8 +222,6 @@
 
 inline ResourceId::ResourceId() : id(0) {}
 
-inline ResourceId::ResourceId(const ResourceId& rhs) : id(rhs.id) {}
-
 inline ResourceId::ResourceId(uint32_t res_id) : id(res_id) {}
 
 inline ResourceId::ResourceId(uint8_t p, uint8_t t, uint16_t e)