diff --git a/runtime/hsa-runtime/core/util/flag.h b/runtime/hsa-runtime/core/util/flag.h
index a75d3f6bb0..16226b19db 100644
--- a/runtime/hsa-runtime/core/util/flag.h
+++ b/runtime/hsa-runtime/core/util/flag.h
@@ -230,7 +230,7 @@ class Flag {
     enable_mwaitx_ = (var == "1") ? true : false;
 
     var = os::GetEnvVar("HSA_ENABLE_IPC_MODE_LEGACY");
-    enable_ipc_mode_legacy_ = (var == "1") ? true : false;
+    enable_ipc_mode_legacy_ = (var == "1") ? true : true; // Disable DMA-buf implementation for now
     if (os::IsEnvVarSet("HSA_PCS_MAX_DEVICE_BUFFER_SIZE")) {
       var = os::GetEnvVar("HSA_PCS_MAX_DEVICE_BUFFER_SIZE");
       char* end;