diff --git a/test/smoke-limbo/mix_hipmemset_omp/memset.cpp b/test/smoke-limbo/mix_hipmemset_omp/memset.cpp
index 67f8e7b554..85f3fdd638 100644
--- a/test/smoke-limbo/mix_hipmemset_omp/memset.cpp
+++ b/test/smoke-limbo/mix_hipmemset_omp/memset.cpp
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <omp.h>
 #include "hip_memset.h"
 
@@ -6,14 +7,29 @@
 
 int main() {
   int n = N;
-  int *a = (int *) omp_target_alloc(n * sizeof(int), omp_get_default_device());
+  int dev = omp_get_default_device();
+  int host = omp_get_initial_device();
+  int *a = (int *) omp_target_alloc(n * sizeof(int), dev);
   set_mem(a, n);
+
+  // a is device memory, so it cannot be read from host code. Whether such a
+  // read happens to work is decided by how much of the GPU memory the CPU can
+  // map, which varies from machine to machine.
+  int *b = (int *) malloc(n * sizeof(int));
+  if (omp_target_memcpy(b, a, n * sizeof(int), 0, 0, host, dev)) {
+    printf("omp_target_memcpy failed\n");
+    return 1;
+  }
+
   int err = 0;
   for(int i = 0; i < n; i++)
-    if (a[i] != 0) {
-      printf("Error at %d: a[%d] = %d\n", i, i, a[i]);
+    if (b[i] != 0) {
+      printf("Error at %d: a[%d] = %d\n", i, i, b[i]);
       err++;
       if (err > 10) break;
     }
+
+  free(b);
+  omp_target_free(a, dev);
   return err;
 }