diff --git a/plugins/SimulationView/layers3d.shader b/plugins/SimulationView/layers3d.shader
index dc5aee2d1c..a3be25cf01 100644
--- a/plugins/SimulationView/layers3d.shader
+++ b/plugins/SimulationView/layers3d.shader
@@ -111,7 +111,7 @@ vertex41core =
 
     float clamp(float v)
     {
-        float t = v < 0 ? 0 : v;
+        float t = v < 0.0 ? 0.0 : v;
         return t > 1.0 ? 1.0 : t;
     }