diff --git a/nimble/host/src/ble_gattc.c b/nimble/host/src/ble_gattc.c
index ee1b149bc..31087ef02 100644
--- a/nimble/host/src/ble_gattc.c
+++ b/nimble/host/src/ble_gattc.c
@@ -3410,7 +3410,7 @@ ble_gattc_read_mult_cb_var(struct ble_gattc_proc *proc, int status,
         return 0;
     }
 
-    memset(attr, 0, sizeof(*attr));
+    memset(attr, 0, sizeof(attr));
 
     for (i = 0; i < proc->read_mult.num_handles; i++) {
         attr[i].handle = proc->read_mult.handles[i];