diff --git a/src/rendering/gl/shaders/gl_postprocessshader.cpp b/src/rendering/gl/shaders/gl_postprocessshader.cpp
index 0e87275e0..09a23dbec 100644
--- a/src/rendering/gl/shaders/gl_postprocessshader.cpp
+++ b/src/rendering/gl/shaders/gl_postprocessshader.cpp
@@ -221,7 +221,7 @@ void PostProcessShaderInstance::BindTextures()
 		{
 			glUniform1i(location, textureUnit);
 
-			glActiveTexture(GL_TEXTURE0 + 1);
+			glActiveTexture(GL_TEXTURE0 + textureUnit);
 			auto it = mTextureHandles.find(tex);
 			if (it == mTextureHandles.end())
 			{