diff --git a/src/util/00-mesa-defaults.conf b/src/util/00-mesa-defaults.conf
index cdcf300c9d4..07157e43a23 100644
--- a/src/util/00-mesa-defaults.conf
+++ b/src/util/00-mesa-defaults.conf
@@ -704,7 +704,7 @@ TODO: document the other workarounds.
             <option name="vk_zero_vram" value="true" />
         </application>
 
-        <application name="X4 Foundations" executable="X4.exe">
+        <application name="X4 Foundations" executable="X4">
             <option name="vk_zero_vram" value="true" />
         </application>
 
@@ -1138,7 +1138,7 @@ TODO: document the other workarounds.
             <!-- Tries to use NvAPI_D3D11_CreateCubinComputeShaderWithName otherwise -->
             <option name="force_vk_vendor" value="-1" />
         </application>
-        <application name="X4 Foundations" executable="X4.exe">
+        <application name="X4 Foundations" executable="X4">
             <option name="force_vk_vendor" value="-1" />
         </application>
     </device>