diff --git a/src/renderer/painter_composite.cpp b/src/renderer/painter_composite.cpp
index 9ff5de108..af3fd8e32 100644
--- a/src/renderer/painter_composite.cpp
+++ b/src/renderer/painter_composite.cpp
@@ -8,11 +8,6 @@ void Painter::drawComposite(GLuint texture, const CompositeProperties &propertie
     // We're doing full-screen framebuffer blending, so no need to do stencil testing here.
     glDisable(GL_STENCIL_TEST);
 
-    // Normally, we're using premultiplied alpha, but the resulting image we've
-    // just drawn is non-premultiplied. That means when blending, we have to make
-    // sure that we account for that.
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
     useProgram(compositeShader->program);
     compositeShader->setMatrix(nativeMatrix);
 
@@ -32,7 +27,4 @@ void Painter::drawComposite(GLuint texture, const CompositeProperties &propertie
 
     // Reset back.
     glEnable(GL_STENCIL_TEST);
-
-    // Reset back to use premultiplied alpha blending.
-    glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
 }