diff --git a/gsk/gl/gskglshaderbuilder.c b/gsk/gl/gskglshaderbuilder.c
index d3b2a8351c..1a4ddc301b 100644
--- a/gsk/gl/gskglshaderbuilder.c
+++ b/gsk/gl/gskglshaderbuilder.c
@@ -229,6 +229,8 @@ gsk_gl_shader_builder_create_program (GskGLShaderBuilder  *self,
   program_id = glCreateProgram ();
   glAttachShader (program_id, vertex_id);
   glAttachShader (program_id, fragment_id);
+  glBindAttribLocation (program_id, 0, "aPosition");
+  glBindAttribLocation (program_id, 1, "vUv");
   glLinkProgram (program_id);
 
   glGetProgramiv (program_id, GL_LINK_STATUS, &status);