diff --git a/client/cmdhfmfhard.c b/client/cmdhfmfhard.c
index cbdf3f60..652a3cad 100644
--- a/client/cmdhfmfhard.c
+++ b/client/cmdhfmfhard.c
@@ -2536,6 +2536,9 @@ int mfnestedhard(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBloc
 	char progress_text[80];
 	
 	SetSIMDInstr(SIMD_NONE);
+	char instr_set[12] = {0};
+	get_SIMD_instruction_set(instr_set);
+	PrintAndLog("Using %s SIMD core.", instr_set);
 
 	srand((unsigned) time(NULL));
 	brute_force_per_second = brute_force_benchmark();