diff --git a/lsteamclient/gen_wrapper.py b/lsteamclient/gen_wrapper.py
index 83ea7000..4e32d7e2 100755
--- a/lsteamclient/gen_wrapper.py
+++ b/lsteamclient/gen_wrapper.py
@@ -558,7 +558,17 @@ path_conversions = [
             "w2l_arrays": [False],
             "w2l_urls": [False],
             "return_is_size": False
-        }
+        },
+        {
+            "parent_name": "SetInputActionManifestFilePath",
+            "l2w_names": [],
+            "l2w_lens": [],
+            "l2w_urls": [],
+            "w2l_names": ["pchInputActionManifestAbsolutePath"],
+            "w2l_arrays": [False],
+            "w2l_urls": [False],
+            "return_is_size": False
+        },
 ]
 
 def strip_const(typename):
diff --git a/lsteamclient/winISteamInput.c b/lsteamclient/winISteamInput.c
index 42d28c9a..441560b3 100644
--- a/lsteamclient/winISteamInput.c
+++ b/lsteamclient/winISteamInput.c
@@ -39,8 +39,10 @@ bool __thiscall winISteamInput_SteamInput005_Shutdown(winISteamInput_SteamInput0
 DEFINE_THISCALL_WRAPPER(winISteamInput_SteamInput005_SetInputActionManifestFilePath, 8)
 bool __thiscall winISteamInput_SteamInput005_SetInputActionManifestFilePath(winISteamInput_SteamInput005 *_this, const char * pchInputActionManifestAbsolutePath)
 {
+    char lin_pchInputActionManifestAbsolutePath[PATH_MAX];
+    steamclient_dos_path_to_unix_path(pchInputActionManifestAbsolutePath, lin_pchInputActionManifestAbsolutePath, 0);
     TRACE("%p\n", _this);
-    return cppISteamInput_SteamInput005_SetInputActionManifestFilePath(_this->linux_side, pchInputActionManifestAbsolutePath);
+    return cppISteamInput_SteamInput005_SetInputActionManifestFilePath(_this->linux_side, pchInputActionManifestAbsolutePath ? lin_pchInputActionManifestAbsolutePath : NULL);
 }
 
 DEFINE_THISCALL_WRAPPER(winISteamInput_SteamInput005_RunFrame, 8)