diff --git a/include/tinycrypt/ecc.h b/include/tinycrypt/ecc.h
index 57aa5087d..4c20729ac 100644
--- a/include/tinycrypt/ecc.h
+++ b/include/tinycrypt/ecc.h
@@ -85,7 +85,7 @@ extern "C" {
 /* Return values for functions, chosen with large Hamming distances between
  * them (especially to SUCESS) to mitigate the impact of fault injection
  * attacks flipping a low number of bits. */
-#define UECC_SUCCESS            0
+#define UECC_SUCCESS            0x00FFAAAA
 #define UECC_FAILURE            0x75555555
 #define UECC_FAULT_DETECTED     0x7aaaaaaa