diff --git a/proton b/proton
index bdfa8d7c02..cb3c729dac 100755
--- a/proton
+++ b/proton
@@ -255,6 +255,11 @@ with prefix_lock:
         with open(os.environ["STEAM_COMPAT_DATA_PATH"] + "/tracked_files", "w") as tfiles:
             mergedirs(basedir + "/dist/share/default_pfx", prefix, tfiles)
 
+    if os.path.exists(prefix + "/drive_c/windows/syswow64"):
+        pfx_arch = "win64"
+    else:
+        pfx_arch = "win32"
+
     with open(version_file, "w") as f:
         f.write(CURRENT_PREFIX_VERSION + "\n")
 
@@ -268,7 +273,12 @@ with prefix_lock:
     else:
         #linux-only fallback, really shouldn't get here
         steamdir = os.environ["HOME"] + ".steam/root/"
-    dst = prefix + "/drive_c/Program Files (x86)/"
+
+    if pfx_arch == "win64":
+        dst = prefix + "/drive_c/Program Files (x86)/"
+    else:
+        dst = prefix + "/drive_c/Program Files/"
+
     makedirs(dst + "Steam")
     filestocopy = ["steamclient.dll",
             "steamclient64.dll",
@@ -286,8 +296,11 @@ with prefix_lock:
     shutil.copy(basedir + "/dist/lib/wine/fakedlls/vrclient.dll", dst)
     shutil.copy(basedir + "/dist/lib64/wine/fakedlls/vrclient_x64.dll", dst)
 
-    shutil.copy(basedir + "/dist/lib/wine/dxvk/openvr_api_dxvk.dll", prefix + "/drive_c/windows/syswow64/")
-    shutil.copy(basedir + "/dist/lib64/wine/dxvk/openvr_api_dxvk.dll", prefix + "/drive_c/windows/system32/")
+    if pfx_arch == "win64":
+        shutil.copy(basedir + "/dist/lib/wine/dxvk/openvr_api_dxvk.dll", prefix + "/drive_c/windows/syswow64/")
+        shutil.copy(basedir + "/dist/lib64/wine/dxvk/openvr_api_dxvk.dll", prefix + "/drive_c/windows/system32/")
+    else:
+        shutil.copy(basedir + "/dist/lib/wine/dxvk/openvr_api_dxvk.dll", prefix + "/drive_c/windows/system32/")
 
     #parse linux openvr config and present it in win32 format to the app.
     #logic from openvr's CVRPathRegistry_Public::GetPaths
@@ -371,16 +384,24 @@ with prefix_lock:
 
     if "wined3d" in config_opts:
         #use gl-based wined3d for d3d11 and d3d10
-        make_dxvk_links(basedir + "/dist/lib64/wine/fakedlls/",
-            prefix + "drive_c/windows/system32")
-        make_dxvk_links(basedir + "/dist/lib/wine/fakedlls/",
-            prefix + "drive_c/windows/syswow64")
+        if pfx_arch == "win64":
+            make_dxvk_links(basedir + "/dist/lib64/wine/fakedlls/",
+                prefix + "drive_c/windows/system32")
+            make_dxvk_links(basedir + "/dist/lib/wine/fakedlls/",
+                prefix + "drive_c/windows/syswow64")
+        else:
+            make_dxvk_links(basedir + "/dist/lib/wine/fakedlls/",
+                prefix + "drive_c/windows/system32")
     else:
         #use vulkan-based dxvk for d3d11 and d3d10
-        make_dxvk_links(basedir + "/dist/lib64/wine/dxvk/",
-            prefix + "drive_c/windows/system32")
-        make_dxvk_links(basedir + "/dist/lib/wine/dxvk/",
-            prefix + "drive_c/windows/syswow64")
+        if pfx_arch == "win64":
+            make_dxvk_links(basedir + "/dist/lib64/wine/dxvk/",
+                prefix + "drive_c/windows/system32")
+            make_dxvk_links(basedir + "/dist/lib/wine/dxvk/",
+                prefix + "drive_c/windows/syswow64")
+        else:
+            make_dxvk_links(basedir + "/dist/lib/wine/dxvk/",
+                prefix + "drive_c/windows/system32")
         for f in dxvkfiles:
             dlloverrides[f] = "n"