diff --git a/Makefile b/Makefile
index 014677c..bc91bb0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,12 @@
 srcdir=.
 
-CFLAGS=-g -O2 
+CFLAGS=-g -O2 -I/usr/include/lua5.2
 LDFLAGS=
 CPPFLAGS=
 DEFS=-DHAVE_CONFIG_H
 COMPILE_FLAGS=${CFLAGS} ${CPPFLAGS} ${DEFS} -Wall -Wextra -Werror -Wno-deprecated -fno-strict-aliasing -fno-omit-frame-pointer -ggdb
 
-EXTRA_LIBS=-lconfig -lcrypto -lz -lrt -lm   -lreadline -llua 
+EXTRA_LIBS=-lconfig -lcrypto -lz -lm   -lreadline -llua5.2  -ldl
 LOCAL_LDFLAGS=-rdynamic -ggdb ${EXTRA_LIBS}
 LINK_FLAGS=${LDFLAGS} ${LOCAL_LDFLAGS}
 
diff --git a/loop.c b/loop.c
index 3cce8e3..fe2c211 100644
--- a/loop.c
+++ b/loop.c
@@ -517,13 +517,13 @@ int loop (void) {
       do_send_code (default_username);
       char *code = 0;
       size_t size = 0;
-      printf ("Code from sms (if you did not receive an SMS and want to be called, type 0): ");
+      printf ("Code from sms (if you did not receive an SMS and want to be called, type \"call\"): ");
       while (1) {
         if (net_getline (&code, &size) == -1) {
           perror ("getline()");
           exit (EXIT_FAILURE);
         }
-        if (*code == '0') {
+        if (!strcmp (code, "call")) {
           printf ("You typed 0, switching to phone system.\n");
           do_phone_call (default_username);
           printf ("Calling you! Code: ");
@@ -569,13 +569,13 @@ int loop (void) {
       DC_working = DC_list[dc_working_num];
       
       do_send_code (default_username);
-      printf ("Code from sms (if you did not receive an SMS and want to be called, type 0): ");
+      printf ("Code from sms (if you did not receive an SMS and want to be called, type \"call\"): ");
       while (1) {
         if (net_getline (&code, &size) == -1) {
           perror ("getline()");
           exit (EXIT_FAILURE);
         }
-        if (*code == '0') {
+        if (!strcmp (code, "call")) {
           printf ("You typed 0, switching to phone system.\n");
           do_phone_call (default_username);
           printf ("Calling you! Code: ");
diff --git a/queries.c b/queries.c
index f7aa8e3..426a5d5 100644
--- a/queries.c
+++ b/queries.c
@@ -472,7 +472,6 @@ void do_send_code (const char *user) {
 
 int phone_call_on_answer (struct query *q UU) {
   fetch_bool ();
-  assert(1);
   return 0;
 }