diff --git a/src/sample.c b/src/sample.c
index 48f108de5..83cdb9259 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -4501,7 +4501,7 @@ static struct sample_conv_kw_list sample_conv_kws = {ILH, {
 	{ "be2hex",  sample_conv_be2hex,       ARG3(1,STR,SINT,SINT), sample_conv_be2hex_check, SMP_T_BIN,  SMP_T_STR  },
 	{ "hex",     sample_conv_bin2hex,      0,                     NULL,                     SMP_T_BIN,  SMP_T_STR  },
 	{ "hex2i",   sample_conv_hex2int,      0,                     NULL,                     SMP_T_STR,  SMP_T_SINT },
-	{ "ipmask",  sample_conv_ipmask,       ARG2(1,MSK4,MSK6),     NULL,                     SMP_T_ADDR, SMP_T_IPV4 },
+	{ "ipmask",  sample_conv_ipmask,       ARG2(1,MSK4,MSK6),     NULL,                     SMP_T_ADDR, SMP_T_ADDR },
 	{ "ltime",   sample_conv_ltime,        ARG2(1,STR,SINT),      NULL,                     SMP_T_SINT, SMP_T_STR  },
 	{ "utime",   sample_conv_utime,        ARG2(1,STR,SINT),      NULL,                     SMP_T_SINT, SMP_T_STR  },
 	{ "crc32",   sample_conv_crc32,        ARG1(0,SINT),          NULL,                     SMP_T_BIN,  SMP_T_SINT },