diff --git a/indra/llcommon/tests/llstring_test.cpp b/indra/llcommon/tests/llstring_test.cpp
index 1f4603631a23d16d85f6dff5038e5bccb1dd2cde..6a2ebc61f5d5fff88bcb7860c91b73f9e3aeaeae 100644
--- a/indra/llcommon/tests/llstring_test.cpp
+++ b/indra/llcommon/tests/llstring_test.cpp
@@ -223,6 +223,10 @@ namespace tut
 		str_val = "\r\n\t\t";
 		LLStringUtil::stripNonprintable(str_val);
 		ensure_equals("stripNonprintable resulting in empty string failed", str_val, "");
+
+		str_val = "";
+		LLStringUtil::stripNonprintable(str_val);
+		ensure_equals("stripNonprintable of empty string resulting in empty string failed", str_val, "");
 	}
 
 	template<> template<>