diff --git a/src/core/Program.js b/src/core/Program.js
index a7413402..4be0f567 100644
--- a/src/core/Program.js
+++ b/src/core/Program.js
@@ -265,6 +265,7 @@ function setUniform(gl, type, location, value) {
         case 5124: // INT
         case 35678: // SAMPLER_2D
         case 36306: // U_SAMPLER_2D
+        case 35679: // SAMPLER_3D
         case 35680: // SAMPLER_CUBE
         case 36289: // SAMPLER_2D_ARRAY
             return value.length ? gl.uniform1iv(location, value) : gl.uniform1i(location, value); // SAMPLER_CUBE