diff --git a/CHANGELOG b/CHANGELOG
index ccb9f70..c827543 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -12,3 +12,8 @@ SUPPORT	Issue #1 "Failure at calloc for 'ip_seen' on KVM VPSs?"
 1.0.2	2013-8-18
 BUGFIX	Issue #14 "gcc 4.7.2 -Wunprototyped-calls error with recv_run."
 	- changed recv_run header to match def in recv.c
+
+1.0.3	2013-8-19
+BUGFIX	Issues 21,28 "fixed get_gateway malloc/memset errors"
+BUGFIX  Issue 24 "Makefile does not respect LDFLAGS"
+	- changed = to += for CFLAGS, LDFAGS, and LDLIBS
diff --git a/src/Makefile b/src/Makefile
index eeffc0b..6301977 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,8 +1,6 @@
-CC=gcc
-
-CFLAGS=-Wall -pedantic -Wextra -std=gnu99 -I../lib -I./ -Ioutput_modules -O2 -g
-LDFLAGS=-g -pthread
-LDLIBS= -lpcap -lgmp -lm
+CFLAGS+=-Wall -pedantic -Wextra -std=gnu99 -I../lib -I./ -Ioutput_modules -O2 -g
+LDFLAGS+=-g -pthread
+LDLIBS+= -lpcap -lgmp -lm
 TARGETS=zmap
 VPATH=../lib:output_modules:probe_modules
 PREFIX=/usr/local
diff --git a/src/get_gateway.c b/src/get_gateway.c
index 26f6404..e015fa8 100644
--- a/src/get_gateway.c
+++ b/src/get_gateway.c
@@ -72,7 +72,7 @@ int send_nl_req(uint16_t msg_type, uint32_t seq,
 		return -1;
 	}
 
-	memset(nlmsg, 0, sizeof(nlmsg));
+	memset(nlmsg, 0, NLMSG_SPACE(payload_len));
 	memcpy(NLMSG_DATA(nlmsg), payload, payload_len);
 	nlmsg->nlmsg_type = msg_type;
 	nlmsg->nlmsg_len = NLMSG_LENGTH(payload_len);