diff --git a/nse_nsock.cc b/nse_nsock.cc
index 79c34ff9f..567eb7961 100644
--- a/nse_nsock.cc
+++ b/nse_nsock.cc
@@ -735,9 +735,9 @@ static int l_get_info (lua_State *L)
 
   lua_pushboolean(L, true);
   lua_pushstring(L, inet_ntop_both(af, &local, ipstring_local));
-  lua_pushnumber(L, inet_port_both(af, &local));
+  lua_pushinteger(L, inet_port_both(af, &local));
   lua_pushstring(L, inet_ntop_both(af, &remote, ipstring_remote));
-  lua_pushnumber(L, inet_port_both(af, &remote));
+  lua_pushinteger(L, inet_port_both(af, &remote));
   return 5;
 }
 
diff --git a/nse_utility.cc b/nse_utility.cc
index 72e53c9b9..b96c30cff 100644
--- a/nse_utility.cc
+++ b/nse_utility.cc
@@ -157,8 +157,8 @@ uint16_t nseU_checkport (lua_State *L, int idx, const char **protocol)
 
   if (lua_istable(L, idx)) {
     lua_getfield(L, idx, "number");
-    if (!lua_isnumber(L, -1))
-      luaL_argerror(L, idx, "port table lacks numeric 'number' field");
+    if (!lua_isinteger(L, -1))
+      luaL_argerror(L, idx, "port table lacks integer 'number' field");
     port = (uint16_t) lua_tointeger(L, -1);
     lua_getfield(L, idx, "protocol");
     if (lua_isstring(L, -1))
@@ -205,8 +205,8 @@ Port *nseU_getport (lua_State *L, Target *target, Port *port, int idx)
   idx = lua_absindex(L, idx);
   luaL_checktype(L, idx, LUA_TTABLE);
   lua_getfield(L, idx, "number");
-  if (!lua_isnumber(L, -1))
-    luaL_error(L, "port 'number' field must be a number");
+  if (!lua_isinteger(L, -1))
+    luaL_error(L, "port 'number' field must be an integer");
   lua_getfield(L, idx, "protocol");
   if (!lua_isstring(L, -1))
     luaL_error(L, "port 'protocol' field must be a string");