2 files changed, 2 insertions, 0 deletions

diff --git a/recipes-mac/smack/tcp-smack-test/tcp_client.c b/recipes-mac/smack/tcp-smack-test/tcp_client.c
index 6c0a474..b82b575 100644
--- a/recipes-mac/smack/tcp-smack-test/tcp_client.c
+++ b/recipes-mac/smack/tcp-smack-test/tcp_client.c
@@ -18,6 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <errno.h>
diff --git a/recipes-mac/smack/udp-smack-test/udp_client.c b/recipes-mac/smack/udp-smack-test/udp_client.c
index 23f3e00..976cbdc 100644
--- a/recipes-mac/smack/udp-smack-test/udp_client.c
+++ b/recipes-mac/smack/udp-smack-test/udp_client.c
@@ -18,6 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 #include <sys/socket.h>
+#include <stdlib.h>
 #include <stdio.h>
 #include <netinet/in.h>
 #include <netdb.h>