diff --git a/soes/esc_coe.h b/soes/esc_coe.h
index 6223909..fb128e1 100644
--- a/soes/esc_coe.h
+++ b/soes/esc_coe.h
@@ -12,6 +12,7 @@
 #define __esc_coe__
 
 #include <cc.h>
+#include "options.h"
 
 
 typedef struct
@@ -133,6 +134,11 @@ extern uint32_t ESC_upload_pre_objecthandler (uint16_t index,
       size_t *size,
       uint16_t flags);
 extern uint32_t ESC_upload_post_objecthandler (uint16_t index, uint8_t subindex, uint16_t flags);
+
+#if USE_CONST_OBJECTLIST
 extern const _objectlist SDOobjects[];
+#else
+extern _objectlist SDOobjects[];
+#endif
 
 #endif
diff --git a/soes/options.h b/soes/options.h
index 3415e07..033aa5f 100644
--- a/soes/options.h
+++ b/soes/options.h
@@ -9,6 +9,11 @@
 /* User-defined options, Options defined here will override default values */
 #include "ecat_options.h"
 
+/* SDOobjects to be provided as const */
+#ifndef USE_CONST_OBJECTLIST
+#define USE_CONST_OBJECTLIST  1
+#endif
+
 /* FoE support */
 #ifndef USE_FOE
 #define USE_FOE          1