diff --git a/asc2log.c b/asc2log.c
index 9eb780c..b2219c9 100644
--- a/asc2log.c
+++ b/asc2log.c
@@ -224,7 +224,7 @@ void eval_canfd(char* buf, struct timeval *date_tvp, char timestamps, int dplace
 	int interface;
 	static struct timeval tv; /* current frame timestamp */
 	static struct timeval read_tv; /* frame timestamp from ASC file */
-	struct canfd_frame cf;
+	struct canfd_frame cf = {};
 	unsigned char brs, esi, ctmp;
 	unsigned int flags;
 	int dlc, dlen = 0;
@@ -241,8 +241,6 @@ void eval_canfd(char* buf, struct timeval *date_tvp, char timestamps, int dplace
 	   00 00 00 00 00 00 00 00 00 00 00 00 00 00 59 c0		\
 	   100000  214   223040 80000000 46500250 460a0250 20011736 20010205 */
 
-	memset(&cf, 0, sizeof(cf));
-
 	/* check for valid line without symbolic name */
 	if (sscanf(buf, "%lu.%lu %*s %d %2s %s %hhx %hhx %x %d ",
 		   &read_tv.tv_sec, &read_tv.tv_usec, &interface,
diff --git a/cangw.c b/cangw.c
index 52310c9..0485365 100644
--- a/cangw.c
+++ b/cangw.c
@@ -706,8 +706,8 @@ int main(int argc, char **argv)
 	struct can_filter filter;
 	struct sockaddr_nl nladdr;
 
-	struct cgw_csum_xor cs_xor;
-	struct cgw_csum_crc8 cs_crc8;
+	struct cgw_csum_xor cs_xor = {};
+	struct cgw_csum_crc8 cs_crc8 = {};
 	char crc8tab[513] = {0};
 
 	struct modattr modmsg[CGW_MOD_FUNCS];
@@ -717,8 +717,6 @@ int main(int argc, char **argv)
 	int i;
 
 	memset(&req, 0, sizeof(req));
-	memset(&cs_xor, 0, sizeof(cs_xor));
-	memset(&cs_crc8, 0, sizeof(cs_crc8));
 
 	while ((opt = getopt(argc, argv, "ADFLs:d:Xteiu:l:f:c:p:x:m:M:?")) != -1) {
 		switch (opt) {