diff --git a/source/blender/python/intern/gpu.c b/source/blender/python/intern/gpu.c
index 50dd4618166..48230a723d2 100644
--- a/source/blender/python/intern/gpu.c
+++ b/source/blender/python/intern/gpu.c
@@ -138,6 +138,7 @@ static PyObject *PyInit_gpu(void)
 	PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_MAT_EMIT);
 	PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_MAT_AMB);
 	PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_MAT_ALPHA);
+	PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_MAT_MIR);
 
 
 	/* -------------------------------------------------------------------- */