diff --git a/build/linux/x86_64/make-Makefiles.bash b/build/linux/x86_64/make-Makefiles.bash
index d8b4df97..9c8877d1 100755
--- a/build/linux/x86_64/make-Makefiles.bash
+++ b/build/linux/x86_64/make-Makefiles.bash
@@ -1,3 +1,7 @@
 #!/bin/bash
 # Run this from within a bash shell
-cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=debug -DCMAKE_RKPLATFORM_ENABLE=ON ../../../  && ccmake  ../../../
+# x86_64 is for simulation do not enable RK platform
+cmake -G "Unix Makefiles" \
+    -DCMAKE_BUILD_TYPE=debug \
+    -DCMAKE_RKPLATFORM_ENABLE=OFF \
+    ../../../  && ccmake  ../../../
diff --git a/osal/linux/os_allocator.c b/osal/linux/os_allocator.c
index f45701d9..8b532cf0 100644
--- a/osal/linux/os_allocator.c
+++ b/osal/linux/os_allocator.c
@@ -138,7 +138,11 @@ MPP_RET os_allocator_get(os_allocator *api, MppBufferType type)
         *api = allocator_normal;
     } break;
     case MPP_BUFFER_TYPE_ION : {
+#ifdef RKPLATFORM
         *api = allocator_ion;
+#else
+        *api = allocator_normal;
+#endif
     } break;
     case MPP_BUFFER_TYPE_V4L2 : {
         mpp_err("os_allocator_get Linux MPP_BUFFER_TYPE_V4L2 do not implement yet\n");