diff --git a/server/TetherController.cpp b/server/TetherController.cpp
index fb51c06..4e1c52f 100644
--- a/server/TetherController.cpp
+++ b/server/TetherController.cpp
@@ -158,6 +158,8 @@
             char *start = strdup(inet_ntoa(addrs[addrIndex++]));
             char *end = strdup(inet_ntoa(addrs[addrIndex++]));
             asprintf(&(args[nextArg++]),"--dhcp-range=%s,%s,1h", start, end);
+            free(start);
+            free(end);
         }
 
         if (execv(args[0], args)) {