diff --git a/mdk/config-dist.json b/mdk/config-dist.json
index 9e426b06..e1a608b8 100644
--- a/mdk/config-dist.json
+++ b/mdk/config-dist.json
@@ -20,7 +20,9 @@
         // A directory used by MDK to store different kind of things such as scripts and backups.
         "moodle": "~/.moodle-sdk",
         // Used for cached repositories and stuff which could be shared system-wide.
-        "mdk": "~/.moodle-sdk"
+        "mdk": "~/.moodle-sdk",
+        // Used for temporary files (e.g. editor).
+        "tmpdir": "~/.moodle-sdk/tmp"
     },
 
     // List of remotes to work with
diff --git a/mdk/tools.py b/mdk/tools.py
index e2771133..4a851633 100644
--- a/mdk/tools.py
+++ b/mdk/tools.py
@@ -109,10 +109,14 @@ def launchEditor(filepath=None, suffix='.tmp'):
     editor = resolveEditor()
     if not editor:
         raise Exception('Could not locate the editor')
-    with tempfile.NamedTemporaryFile(suffix=suffix, delete=False) as tmpfile:
-        with open(filepath, 'r') as f:
-            tmpfile.write(f.read())
-            tmpfile.flush()
+    tempdir = os.path.expanduser(C.get('dirs.tmpdir'))
+    if not os.path.exists(tempdir):
+        mkdir(tempdir)
+    with tempfile.NamedTemporaryFile(suffix=suffix, delete=False, dir=tempdir) as tmpfile:
+        if filepath:
+            with open(filepath, 'r') as f:
+                tmpfile.write(f.read())
+                tmpfile.flush()
         subprocess.call([editor, tmpfile.name])
     return tmpfile.name