diff --git a/indra/llcharacter/llvisualparam.h b/indra/llcharacter/llvisualparam.h
index 9000be8fe0..60ea7a369a 100644
--- a/indra/llcharacter/llvisualparam.h
+++ b/indra/llcharacter/llvisualparam.h
@@ -175,6 +175,6 @@ protected:
 	S32					mID;				// id for storing weight/morphtarget compares compactly
 	LLVisualParamInfo	*mInfo;
 	EParamLocation		mParamLocation;		// where does this visual param live?
-};
+} LL_ALIGN_POSTFIX(16);
 
 #endif // LL_LLVisualParam_H