diff --git a/indra/llprimitive/lltextureentry.cpp b/indra/llprimitive/lltextureentry.cpp
index 3c1d031ff5d8b72d46d1233c63446b9c88a7cc23..861bde5c89285bceae0bb9e730a233ab353ae812 100644
--- a/indra/llprimitive/lltextureentry.cpp
+++ b/indra/llprimitive/lltextureentry.cpp
@@ -403,7 +403,7 @@ S32 LLTextureEntry::setOffsetT(F32 t)
 
 S32 LLTextureEntry::setRotation(F32 theta)
 {
-	if (mRotation != theta)
+	if (mRotation != theta && llfinite(theta))
 	{
 		mRotation = theta;
 		return TEM_CHANGE_TEXTURE;