diff --git a/typescript/packages/subsurface-viewer/src/layers/grid3d/fragment.fs.glsl.ts b/typescript/packages/subsurface-viewer/src/layers/grid3d/fragment.fs.glsl.ts
index 36d1c3b85..d4570a883 100644
--- a/typescript/packages/subsurface-viewer/src/layers/grid3d/fragment.fs.glsl.ts
+++ b/typescript/packages/subsurface-viewer/src/layers/grid3d/fragment.fs.glsl.ts
@@ -20,7 +20,7 @@ uniform float colorMapRangeMax;
 
 uniform bool  isColoringDiscrete;
 uniform float colorMapSize;
-uniform highp int coloringMode;
+uniform lowp int coloringMode;
 
 uniform vec3 colorMapClampColor;
 uniform bool isClampColor;
diff --git a/typescript/packages/subsurface-viewer/src/layers/grid3d/vertex.glsl.ts b/typescript/packages/subsurface-viewer/src/layers/grid3d/vertex.glsl.ts
index 2240cc496..0051796aa 100644
--- a/typescript/packages/subsurface-viewer/src/layers/grid3d/vertex.glsl.ts
+++ b/typescript/packages/subsurface-viewer/src/layers/grid3d/vertex.glsl.ts
@@ -7,7 +7,7 @@ attribute vec3 positions;
 attribute float properties;
 attribute vec3 normals;
 
-uniform int coloringMode;
+uniform lowp int coloringMode;
 
 // Outputs to fragment shader
 out vec3 cameraPosition;