diff --git a/README.md b/README.md
index 89f62a5..d732606 100644
--- a/README.md
+++ b/README.md
@@ -28,3 +28,16 @@ Screen Shots
 ------------
 
 ![Project Overview](https://wakatime.com/static/img/ScreenShots/ScreenShot-2014-10-29.png)
+
+
+Configuring
+-----------
+
+To use a custom python binary:
+
+    let g:wakatime_PythonBinary = '/usr/bin/python'
+
+The default is to use `python` from your system PATH.
+
+More configs can be set in your `$HOME/.wakatime.cfg` file, which will be read
+by `wakatime-cli.py`. Learn more [here](https://github.com/wakatime/wakatime#configuring).
diff --git a/plugin/wakatime.vim b/plugin/wakatime.vim
index 5e975f5..2363780 100644
--- a/plugin/wakatime.vim
+++ b/plugin/wakatime.vim
@@ -39,9 +39,14 @@ let s:VERSION = '3.0.7'
         endif
     endif
 
-    " Set default action frequency in minutes
-    if !exists("g:wakatime_ActionFrequency")
-        let g:wakatime_ActionFrequency = 2
+    " Set default python binary location
+    if !exists("g:wakatime_PythonBinary")
+        let g:wakatime_PythonBinary = 'python'
+    endif
+
+    " Set default heartbeat frequency in minutes
+    if !exists("g:wakatime_HeartbeatFrequency")
+        let g:wakatime_HeartbeatFrequency = 2
     endif
 
     " Globals
@@ -77,9 +82,11 @@ let s:VERSION = '3.0.7'
             let targetFile = a:last[2]
         endif
         if targetFile != ''
-            let python_bin = 'python'
+            let python_bin = g:wakatime_PythonBinary
             if has('win32') || has('win64')
-                let python_bin = 'pythonw'
+                if python_bin == 'python'
+                    let python_bin = 'pythonw'
+                endif
             endif
             let cmd = [python_bin, '-W', 'ignore', s:plugin_directory . 'packages/wakatime/wakatime-cli.py']
             let cmd = cmd + ['--file', shellescape(targetFile)]
@@ -122,7 +129,7 @@ let s:VERSION = '3.0.7'
 
     function! s:EnoughTimePassed(now, last)
         let prev = a:last[0]
-        if a:now - prev > g:wakatime_ActionFrequency * 60
+        if a:now - prev > g:wakatime_HeartbeatFrequency * 60
             return 1
         endif
         return 0