diff --git a/cas/1.0/default/Android.bp b/cas/1.0/default/Android.bp
index 6da5cc4..544162b 100644
--- a/cas/1.0/default/Android.bp
+++ b/cas/1.0/default/Android.bp
@@ -12,12 +12,6 @@
       "TypeConvert.cpp",
     ],
 
-    product_variables: {
-        treble: {
-            cflags: ["-DUSE_VNDBINDER"],
-        },
-    },
-
     compile_multilib: "32",
     init_rc: ["android.hardware.cas@1.0-service.rc"],
 
diff --git a/cas/1.0/default/service.cpp b/cas/1.0/default/service.cpp
index 3f1df5a..04a8ad9 100644
--- a/cas/1.0/default/service.cpp
+++ b/cas/1.0/default/service.cpp
@@ -31,11 +31,9 @@
 int main() {
     ALOGD("android.hardware.cas@1.0-service starting...");
 
-#ifdef USE_VNDBINDER
     // The CAS HAL may communicate to other vendor components via
     // /dev/vndbinder
     android::ProcessState::initWithDriver("/dev/vndbinder");
-#endif // USE_VNDBINDER
 
     configureRpcThreadpool(8, true /* callerWillJoin */);