diff --git a/src/fnetlock/main.c b/src/fnetlock/main.c
index b76be029d..d4169b7e1 100644
--- a/src/fnetlock/main.c
+++ b/src/fnetlock/main.c
@@ -94,7 +94,8 @@ static void run_trace(void) {
 
 	unsigned start = time(NULL);
 	unsigned char buf[MAX_BUF_SIZE];
-	unsigned bw = 0; // bandwidth calculations
+	// FIXME: error: variable 'bw' set but not used [-Werror,-Wunused-but-set-variable]
+	//unsigned bw = 0; // bandwidth calculations
 
 	int printed = 0;
 	while (1) {
@@ -149,7 +150,8 @@ static void run_trace(void) {
 #endif
 			// filter out loopback traffic
 			if (buf[12] != 127 && buf[16] != 127) {
-				bw += bytes + 14; // assume a 14 byte Ethernet layer
+				// FIXME: error: variable 'bw' set but not used [-Werror,-Wunused-but-set-variable]
+				//bw += bytes + 14; // assume a 14 byte Ethernet layer
 
 				uint32_t ip_src;
 				memcpy(&ip_src, buf + 12, 4);