diff --git a/dlls/lights.cpp b/dlls/lights.cpp
index 1c39266b..13e6d3a9 100644
--- a/dlls/lights.cpp
+++ b/dlls/lights.cpp
@@ -155,10 +155,10 @@ void CEnvLight::KeyValue( KeyValueData* pkvd )
 		}
 		else if( j == 4 )
 		{
-			v /= 255;
-			r *= v;
-			g *= v;
-			b *= v;
+			float vf = v / 255.0f;
+			r *= vf;
+			g *= vf;
+			b *= vf;
 		}
 
 		// simulate qrad direct, ambient,and gamma adjustments, as well as engine scaling