diff --git a/src/amplifier.c b/src/amplifier.c
index 1f66deda8..5fa23e93c 100644
--- a/src/amplifier.c
+++ b/src/amplifier.c
@@ -451,7 +451,7 @@ int HAMLIB_API amp_close(AMP *amp)
 
     if (!amp || !amp->caps)
     {
-        rig_debug(RIG_DEBUG_ERR, "%s: NULL ptr? amp=%p, amp->caps=%p\n", __func__, amp,
+        amp_debug(RIG_DEBUG_ERR, "%s: NULL ptr? amp=%p, amp->caps=%p\n", __func__, amp,
                   amp->caps);
         return -RIG_EINVAL;
     }
@@ -461,7 +461,7 @@ int HAMLIB_API amp_close(AMP *amp)
 
     if (!rs->comm_state)
     {
-        rig_debug(RIG_DEBUG_ERR, "%s: comm_state=0? rs=%p, rs->comm_state=%d\n",
+        amp_debug(RIG_DEBUG_ERR, "%s: comm_state=0? rs=%p, rs->comm_state=%d\n",
                   __func__, rs, rs->comm_state);
         return -RIG_EINVAL;
     }