diff --git a/pssr.cpp b/pssr.cpp
index ccbe4ee2..2220a9b6 100644
--- a/pssr.cpp
+++ b/pssr.cpp
@@ -110,7 +110,7 @@ DecodingResult PSSR_MEM_Base::RecoverMessageFromRepresentative(
 
 	// extract salt and recoverableMessage from DB = 00 ... || 01 || M || salt
 	byte *salt = representative + representativeByteLength - u - digestSize - saltSize;
-	byte *M = std::find_if(representative, salt-1, std::bind2nd(std::not_equal_to<byte>(), 0));
+	byte *M = std::find_if(representative, salt-1, std::bind2nd(std::not_equal_to<byte>(), byte(0)));
 	recoverableMessageLength = salt-M-1;
 	if (*M == 0x01 
 		&& (size_t)(M - representative - (representativeBitLength % 8 != 0)) >= MinPadLen(digestSize)