diff --git a/indra/llui/llui.cpp b/indra/llui/llui.cpp
index 1ea6b66a93cba23efb6fc9912f2f16d292927136..728ed4e7aa11fd49b35e3f1e44f61c14bb767e23 100644
--- a/indra/llui/llui.cpp
+++ b/indra/llui/llui.cpp
@@ -1915,6 +1915,7 @@ namespace LLInitParam
 		green = color.mV[VGREEN];
 		blue = color.mV[VBLUE];
 		alpha = color.mV[VALPHA];
+		control.set("", false);
 	}
 
 	void TypeValues<LLUIColor>::declareValues()