diff --git a/c/modreg.c b/c/modreg.c
index aa9172fb5..fdd1a76fe 100644
--- a/c/modreg.c
+++ b/c/modreg.c
@@ -28,6 +28,11 @@
 
 #include "logging.h"
 
+#ifndef METTLE
+/* TODO LE support after c/lpa.c gets it */
+#error LE is not supported
+#endif
+
 #define PACK_RC_RSN(rc32, rsn32) ((uint64_t) (rc32) << 32 | (rsn32))
 
 #define LOG_DEBUG($fmt, ...) \
diff --git a/h/modreg.h b/h/modreg.h
index 105561cc4..5070aef42 100644
--- a/h/modreg.h
+++ b/h/modreg.h
@@ -11,8 +11,12 @@
 #ifndef H_MODREG_H_
 #define H_MODREG_H_   1
 
+#ifdef METTLE
 #include <metal/metal.h>
 #include <metal/stdint.h>
+#else
+#include <stdint.h>
+#endif
 
 #include "lpa.h"
 #include "zowetypes.h"