diff --git a/source/adapters/opencl/command_buffer.cpp b/source/adapters/opencl/command_buffer.cpp
index b880f94053..74cdd8a03d 100644
--- a/source/adapters/opencl/command_buffer.cpp
+++ b/source/adapters/opencl/command_buffer.cpp
@@ -331,17 +331,6 @@ UR_APIEXPORT ur_result_t UR_APICALL urCommandBufferAppendUSMAdviseExp(
   return UR_RESULT_ERROR_UNSUPPORTED_FEATURE;
 }
 
-UR_APIEXPORT ur_result_t UR_APICALL urCommandBufferAppendUSMFillExp(
-    [[maybe_unused]] ur_exp_command_buffer_handle_t hCommandBuffer,
-    [[maybe_unused]] void *pPtr, [[maybe_unused]] const void *pPattern,
-    [[maybe_unused]] size_t PatternSize, [[maybe_unused]] size_t Size,
-    [[maybe_unused]] uint32_t NumSyncPointsInWaitList,
-    [[maybe_unused]] const ur_exp_command_buffer_sync_point_t
-        *pSyncPointWaitList,
-    [[maybe_unused]] ur_exp_command_buffer_sync_point_t *pSyncPoint) {
-  return UR_RESULT_ERROR_UNSUPPORTED_FEATURE;
-}
-
 UR_APIEXPORT ur_result_t UR_APICALL urCommandBufferEnqueueExp(
     ur_exp_command_buffer_handle_t hCommandBuffer, ur_queue_handle_t hQueue,
     uint32_t numEventsInWaitList, const ur_event_handle_t *phEventWaitList,