diff --git a/src/main/java/com/atsuishio/superbwarfare/mixins/ClientPlayerEntityMixin.java b/src/main/java/com/atsuishio/superbwarfare/mixins/ClientPlayerEntityMixin.java
new file mode 100644
index 000000000..321c1a107
--- /dev/null
+++ b/src/main/java/com/atsuishio/superbwarfare/mixins/ClientPlayerEntityMixin.java
@@ -0,0 +1,25 @@
+package com.atsuishio.superbwarfare.mixins;
+
+import com.atsuishio.superbwarfare.entity.VehicleEntity;
+import com.mojang.authlib.GameProfile;
+import net.minecraft.client.multiplayer.ClientLevel;
+import net.minecraft.client.player.AbstractClientPlayer;
+import net.minecraft.client.player.LocalPlayer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(LocalPlayer.class)
+public class ClientPlayerEntityMixin extends AbstractClientPlayer {
+    public ClientPlayerEntityMixin(ClientLevel world, GameProfile profile) {
+        super(world, profile);
+    }
+
+    @Inject(method = "isCrouching()Z", at = @At("HEAD"), cancellable = true)
+    public void ia$isCrouching(CallbackInfoReturnable<Boolean> cir) {
+        if (getRootVehicle() instanceof VehicleEntity) {
+            cir.setReturnValue(false);
+        }
+    }
+}
diff --git a/src/main/resources/mixins.superbwarfare.json b/src/main/resources/mixins.superbwarfare.json
index f502ef740..d5e4c37fd 100644
--- a/src/main/resources/mixins.superbwarfare.json
+++ b/src/main/resources/mixins.superbwarfare.json
@@ -9,6 +9,7 @@
   ],
   "client": [
     "CameraMixin",
+    "ClientPlayerEntityMixin",
     "GameRendererMixin",
     "ItemInHandLayerMixin",
     "KeyMappingMixin",