diff --git a/sanei/sanei_pa4s2.c b/sanei/sanei_pa4s2.c
index bb0d27cc4..5905b5259 100644
--- a/sanei/sanei_pa4s2.c
+++ b/sanei/sanei_pa4s2.c
@@ -411,6 +411,7 @@ pa4s2_readend_uni (u_int base)
 {
 
   DBG (6, "pa4s2_readend_uni: end of reading sequence\n");
+  DBG (129, "unused base 0x%03X\n", base);
 
 }
 
@@ -458,6 +459,7 @@ pa4s2_readend_nib (u_int base)
 {
 
   DBG (6, "pa4s2_readend_nib: end of reading sequence\n");
+  DBG (129, "unused base 0x%03X\n", base);
 
 }