diff --git a/indra/llprimitive/lldaeloader.cpp b/indra/llprimitive/lldaeloader.cpp
index 89ca130b6..378efa05a 100644
--- a/indra/llprimitive/lldaeloader.cpp
+++ b/indra/llprimitive/lldaeloader.cpp
@@ -2248,7 +2248,7 @@ LLImportMaterial LLDAELoader::profileToMaterial(domProfile_COMMON* material, DAE
 			if (newparams.getCount())
 			{
 
-				for (S32 i = 0; i < newparams.getCount(); i++)
+				for (U32 i = 0; i < newparams.getCount(); i++)
 				{
 					domFx_surface_common* surface = newparams[i]->getSurface();
 				if (surface)
diff --git a/indra/llprimitive/llmodelloader.cpp b/indra/llprimitive/llmodelloader.cpp
index 7859b5ee5..189447150 100644
--- a/indra/llprimitive/llmodelloader.cpp
+++ b/indra/llprimitive/llmodelloader.cpp
@@ -379,7 +379,7 @@ bool LLModelLoader::loadFromSLM(const std::string& filename)
 		{
 			if (!model[lod].empty())
 			{
-				if (idx >= model[lod].size())
+				if (idx >= (S32)model[lod].size())
 				{
 					if (model[lod].size())
 					{