diff --git a/tests/linux/afp_open_file_fork_smoke.c b/tests/linux/afp_open_file_fork_smoke.c
index 732fb37..df2cd99 100644
--- a/tests/linux/afp_open_file_fork_smoke.c
+++ b/tests/linux/afp_open_file_fork_smoke.c
@@ -99,11 +99,10 @@ static void cpu_to_le32(uint32_t v, uint8_t p[4])
 
 
 static NWCCODE afp_get_entry_id_from_path(NWCONN_HANDLE conn, const char *path,
-                                          uint32_t volume_number,
                                           uint32_t *entry_id)
 {
     NW_FRAGMENT reply;
-    uint8_t request[1 + 4 + 1 + 255];
+    uint8_t request[1 + 1 + 255];
     uint8_t reply_buf[4];
     size_t path_len = strlen(path);
     NWCCODE err;
@@ -111,17 +110,16 @@ static NWCCODE afp_get_entry_id_from_path(NWCONN_HANDLE conn, const char *path,
     if (path_len > 255)
         return NWE_INVALID_PATH;
 
-    request[0] = (uint8_t)volume_number;
-    cpu_to_be32(0, request + 1);
-    request[5] = (uint8_t)path_len;
-    memcpy(request + 6, path, path_len);
+    request[0] = 0;                 /* directory handle 0, raw VOL:path */
+    request[1] = (uint8_t)path_len;
+    memcpy(request + 2, path, path_len);
 
     memset(reply_buf, 0, sizeof(reply_buf));
     reply.fragAddr.rw = reply_buf;
     reply.fragSize = sizeof(reply_buf);
 
     err = NWRequestSimple(conn, NCPC_SFN(0x23, 0x0c),
-                          request, 6 + path_len, &reply);
+                          request, 2 + path_len, &reply);
     if (err)
         return err;
     if (reply.fragSize < 4)
@@ -239,8 +237,7 @@ int main(int argc, char **argv)
     }
 
     if (entry_id_only && !base_entry_id) {
-        err = afp_get_entry_id_from_path(conn, path, volume_number,
-                                         &base_entry_id);
+        err = afp_get_entry_id_from_path(conn, path, &base_entry_id);
         if (err) {
             fprintf(stderr,
                     "AFP Get Entry ID From Path Name failed before entry-id-only open: completion=0x%02x (%u) path=%s\n",