diff --git a/returnvalues/HasReturnvaluesIF.h b/returnvalues/HasReturnvaluesIF.h
index 04acd66e..38b343d4 100644
--- a/returnvalues/HasReturnvaluesIF.h
+++ b/returnvalues/HasReturnvaluesIF.h
@@ -12,8 +12,7 @@ typedef uint16_t ReturnValue_t;
 class HasReturnvaluesIF {
 public:
 	static const ReturnValue_t RETURN_OK = 0;
-	//! This will be the all-ones value irrespective of used unsigned datatype.
-	static const ReturnValue_t RETURN_FAILED = -1;
+	static const ReturnValue_t RETURN_FAILED = 1;
 	virtual ~HasReturnvaluesIF() {}
 
 	static ReturnValue_t makeReturnCode(uint8_t interfaceId, uint8_t number) {