diff --git a/src/calcurse.h b/src/calcurse.h
index 8b6d492..adb2c1e 100644
--- a/src/calcurse.h
+++ b/src/calcurse.h
@@ -100,6 +100,9 @@
 #define DPID_PATH        DIR_NAME DPID_PATH_NAME
 #define NOTES_DIR        DIR_NAME NOTES_DIR_NAME
 
+#define DEFAULT_EDITOR   "vi"
+#define DEFAULT_PAGER    "less"
+
 #define ATTR_FALSE    0
 #define ATTR_TRUE     1
 #define ATTR_LOWEST   2
diff --git a/src/calendar.c b/src/calendar.c
index 160630e..8fea79d 100644
--- a/src/calendar.c
+++ b/src/calendar.c
@@ -145,7 +145,10 @@ void
 calendar_stop_date_thread (void)
 {
   if (calendar_t_date)
-    pthread_cancel (calendar_t_date);
+    {
+      pthread_cancel (calendar_t_date);
+      pthread_join (calendar_t_date, NULL);
+    }
 }
 
 /* Set static variable today to current date */
diff --git a/src/io.c b/src/io.c
index 6e3bf38..7b54632 100644
--- a/src/io.c
+++ b/src/io.c
@@ -2768,6 +2768,9 @@ io_import_data (enum import_type type, struct conf *conf, char *stream_name)
             ngettext ("%d todo", "%d todos", stats.todos), stats.todos);
   snprintf (stats_str[3], BUFSIZ, _("%d skipped"), stats.skipped);
 
+  /* Update the number of todo items. */
+  todo_set_nb (todo_nb () + stats.todos);
+
   if (ui_mode == UI_CURSES && !conf->skip_system_dialogs)
     {
       char read[BUFSIZ], stat[BUFSIZ];
@@ -2911,7 +2914,10 @@ void
 io_stop_psave_thread (void)
 {
   if (io_t_psave)
-    pthread_cancel (io_t_psave);
+    {
+      pthread_cancel (io_t_psave);
+      pthread_join (io_t_psave, NULL);
+    }
 }
 
 /*
diff --git a/src/notify.c b/src/notify.c
index ae9bcbe..6529087 100644
--- a/src/notify.c
+++ b/src/notify.c
@@ -190,7 +190,10 @@ void
 notify_stop_main_thread (void)
 {
   if (notify_t_main)
-    pthread_cancel (notify_t_main);
+    {
+      pthread_cancel (notify_t_main);
+      pthread_join (notify_t_main, NULL);
+    }
 }
 
 /*
diff --git a/src/vars.c b/src/vars.c
index a659336..5155683 100644
--- a/src/vars.c
+++ b/src/vars.c
@@ -117,8 +117,6 @@ struct dmon_conf dmon;
 void
 vars_init (struct conf *conf)
 {
-  char *PATH_VI = "/usr/bin/vi";
-  char *PATH_LESS = "/usr/bin/less";
   char *ed, *pg;
 
   /* Variables for user configuration */
@@ -137,12 +135,12 @@ vars_init (struct conf *conf)
   if (ed == NULL || ed[0] == '\0')
     ed = getenv ("EDITOR");
   if (ed == NULL || ed[0] == '\0')
-    ed = PATH_VI;
+    ed = DEFAULT_EDITOR;
   conf->editor = ed;
 
   pg = getenv ("PAGER");
   if (pg == NULL || pg[0] == '\0')
-    pg = PATH_LESS;
+    pg = DEFAULT_PAGER;
   conf->pager = pg;
 
   wins_set_layout (1);