diff --git a/include/ui/vec4.h b/include/ui/vec4.h
index e13ad96..9346fb3 100644
--- a/include/ui/vec4.h
+++ b/include/ui/vec4.h
@@ -121,6 +121,7 @@
 typedef details::TVec4<uint16_t> ushort4;
 typedef details::TVec4<int8_t> byte4;
 typedef details::TVec4<uint8_t> ubyte4;
+typedef details::TVec4<bool> bool4;
 
 // ----------------------------------------------------------------------------------------
 }  // namespace android