diff --git a/code/ColladaLoader.cpp b/code/ColladaLoader.cpp
index 7ac18c415..07833f3a4 100644
--- a/code/ColladaLoader.cpp
+++ b/code/ColladaLoader.cpp
@@ -425,7 +425,7 @@ void ColladaLoader::BuildMeshesForNode( const ColladaParser& pParser, const Coll
 				table = NULL;
 				DefaultLogger::get()->warn( boost::str( boost::format( "Collada: No material specified for subgroup \"%s\" in geometry \"%s\".") % submesh.mMaterial % mid.mMesh));
 			}
-			std::string& meshMaterial = table ? table->mMatName : "";
+			const std::string& meshMaterial = table ? table->mMatName : "";
 
 			// OK ... here the *real* fun starts ... we have the vertex-input-to-effect-semantic-table
 			// given. The only mapping stuff which we do actually support is the UV channel.
diff --git a/code/ColladaParser.cpp b/code/ColladaParser.cpp
index 3ecb45796..5c084abef 100644
--- a/code/ColladaParser.cpp
+++ b/code/ColladaParser.cpp
@@ -420,13 +420,13 @@ void ColladaParser::ReadLight( Collada::Light& pLight)
 				// text content contains 3 floats
 				const char* content = GetTextContent();
 				  
-				content = fast_atof_move( content, pLight.mColor.r);
+				content = fast_atof_move( content, (float&)pLight.mColor.r);
 				SkipSpacesAndLineEnd( &content);
 				
-				content = fast_atof_move( content, pLight.mColor.g);
+				content = fast_atof_move( content, (float&)pLight.mColor.g);
 				SkipSpacesAndLineEnd( &content);
 
-				content = fast_atof_move( content, pLight.mColor.b);
+				content = fast_atof_move( content, (float&)pLight.mColor.b);
 				SkipSpacesAndLineEnd( &content);
 
 				TestClosing( "color");
@@ -754,16 +754,16 @@ void ColladaParser::ReadEffectColor( aiColor4D& pColor, Sampler& pSampler)
 				// text content contains 4 floats
 				const char* content = GetTextContent(); 
 
-				content = fast_atof_move( content, pColor.r);
+				content = fast_atof_move( content, (float&)pColor.r);
 				SkipSpacesAndLineEnd( &content);
 
-				content = fast_atof_move( content, pColor.g);
+				content = fast_atof_move( content, (float&)pColor.g);
 				SkipSpacesAndLineEnd( &content);
 
-				content = fast_atof_move( content, pColor.b);
+				content = fast_atof_move( content, (float&)pColor.b);
 				SkipSpacesAndLineEnd( &content);
 
-				content = fast_atof_move( content, pColor.a);
+				content = fast_atof_move( content, (float&)pColor.a);
 				SkipSpacesAndLineEnd( &content);
 				TestClosing( "color");
 			}