diff --git a/soem/ethercattype.h b/soem/ethercattype.h
index 86df704..ba5b774 100644
--- a/soem/ethercattype.h
+++ b/soem/ethercattype.h
@@ -23,12 +23,15 @@ extern "C"
 {
 #endif
 
-/** define EC_VER1 if version 1 default context and functions are needed
- * comment if application uses only ecx_ functions and own context */
-#define EC_VER1
-
 #include "osal.h"
 
+/** define EC_VER1 if version 1 default context and functions are needed
+ * define EC_VER2 if application uses only ecx_ functions and own context */
+#if !defined(EC_VER1) && !defined(EC_VER2)
+#   define EC_VER1
+#endif
+
+
 /** Define little endian target by default if no endian is set */
 #if !defined(EC_LITTLE_ENDIAN) && !defined(EC_BIG_ENDIAN)
 #   define EC_LITTLE_ENDIAN