diff --git a/hipnv/include/hip/nvidia_detail/hip_runtime.h b/hipnv/include/hip/nvidia_detail/hip_runtime.h
index 84414fb4a3..dfe41cf3c3 100644
--- a/hipnv/include/hip/nvidia_detail/hip_runtime.h
+++ b/hipnv/include/hip/nvidia_detail/hip_runtime.h
@@ -95,14 +95,6 @@ typedef int hipLaunchParm;
 
 #define HIP_SYMBOL(X) &X
 
-/**
- * extern __shared__
- */
-
-#define HIP_DYNAMIC_SHARED(type, var) extern __shared__ type var[];
-
-#define HIP_DYNAMIC_SHARED_ATTRIBUTE
-
 #ifdef __HIP_DEVICE_COMPILE__
 #define abort_()                                                                                    \
     { asm("trap;"); }