diff --git a/README.md b/README.md
index d2cca3cc..61ecd056 100644
--- a/README.md
+++ b/README.md
@@ -190,7 +190,8 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 | Compat config string  | Environment Variable           | Description  |
 | :-------------------- | :----------------------------- | :----------- |
 |                       | <tt>PROTON_LOG</tt>            | Convenience method for dumping a useful debug log to `$HOME/steam-$APPID.log`. For more thorough logging, use `user_settings.py`. |
-|                       | <tt>PROTON_DUMP_DEBUG_COMMANDS</tt> | When running a game, Proton will write some useful debug scripts for that game into <tt>/tmp/proton_$USER/</tt>. |
+|                       | <tt>PROTON_DUMP_DEBUG_COMMANDS</tt> | When running a game, Proton will write some useful debug scripts for that game into `$PROTON_DEBUG_DIR/proton_$USER/`. |
+|                       | <tt>PROTON_DEBUG_DIR<tt>       | Root directory for the Proton debug scripts, `/tmp` by default. |
 | <tt>wined3d11</tt>    | <tt>PROTON_USE_WINED3D11</tt>  | Use OpenGL-based wined3d instead of Vulkan-based DXVK for d3d11. |
 | <tt>nod3d11</tt>      | <tt>PROTON_NO_D3D11</tt>       | Disable <tt>d3d11.dll</tt>, for games which can fall back to and run better with d3d9. |
 | <tt>noesync</tt>      | <tt>PROTON_NO_ESYNC</tt>       | Do not use eventfd-based in-process synchronization primitives. |
diff --git a/proton b/proton
index 683a76b9..e268b8af 100755
--- a/proton
+++ b/proton
@@ -388,7 +388,7 @@ def dump_dbg_env(f):
 def dump_dbg_scripts():
     exe_name = os.path.basename(sys.argv[2])
 
-    dir = "/tmp/proton_" + os.environ["USER"] + "/"
+    dir = env.get("PROTON_DEBUG_DIR", "/tmp") + "/proton_" + os.environ["USER"] + "/"
     makedirs(dir)
 
     with open(dir + "winedbg", "w") as f:
@@ -469,7 +469,7 @@ def dump_dbg_scripts():
     os.chmod(dir + "run", 0o755)
 
 def run():
-    if "PROTON_DUMP_DEBUG_COMMANDS" in os.environ:
+    if "PROTON_DUMP_DEBUG_COMMANDS" in env:
         try:
             dump_dbg_scripts()
         except: