diff --git a/src/renderers/webgl/WebGLState.js b/src/renderers/webgl/WebGLState.js
index 33826a4cc44697bc5f233fd5f30535521a23bc7f..6437a6b2a6b85a0e72847386019b7d014837c338 100644
--- a/src/renderers/webgl/WebGLState.js
+++ b/src/renderers/webgl/WebGLState.js
@@ -268,7 +268,7 @@ THREE.WebGLState = function ( gl, extensions, paramThreeToGL ) {
 				if ( premultipliedAlpha ) {
 
 					gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-					gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.SRC_COLOR, gl.SRC_ALPHA );
+					gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );
 
 				} else {