diff --git a/indra/llcommon/llsd.h b/indra/llcommon/llsd.h
index f034470da79557b99c148ecf5d6d58de17ef6aa6..09aac47d0d937f2ded637e24d85434c88a4c670c 100644
--- a/indra/llcommon/llsd.h
+++ b/indra/llcommon/llsd.h
@@ -320,6 +320,8 @@ class LL_COMMON_API LLSD
 		// overload to disambiguate [0], [1] et al.
 		const LLSD& operator[](Integer i) const { return (*this)[size_t(i)]; }
 		LLSD& operator[](Integer i) { return (*this)[size_t(i)]; }
+		const LLSD& operator[](U32 i) const { return (*this)[size_t(i)]; }
+		LLSD& operator[](U32 i) { return (*this)[size_t(i)]; }
 	//@}
 
 	/** @name Iterators */