diff --git a/k9vamps/k9vamps.cpp b/k9vamps/k9vamps.cpp
index d7bd43d..ebf4164 100755
--- a/k9vamps/k9vamps.cpp
+++ b/k9vamps/k9vamps.cpp
@@ -399,7 +399,7 @@ int k9vamps::check_video_packet (uchar *ptr) {
         pad_packet_start_code |= (uint32_t) (ptr [3]);
 
         if (pad_packet_start_code != 0x000001be)
-            tqDebug (TQString("Bad padding packet start code at %1: %2").arg(rtell (ptr + vid_packet_length)).arg(pad_packet_start_code));
+            tqDebug ("%s", (TQString("Bad padding packet start code at %1: %2").arg(rtell (ptr + vid_packet_length)).arg(pad_packet_start_code)).ascii());
         else {
             pad_packet_length  = ptr [4] << 8;
             pad_packet_length |= ptr [5];
@@ -409,7 +409,7 @@ int k9vamps::check_video_packet (uchar *ptr) {
 
     // length of video packet plus padding packet must always match sector size
     if (14 + vid_packet_length + pad_packet_length != SECT_SIZE)
-        tqDebug (TQString("Bad video packet length at %1: %2").arg(rtell (ptr)).arg(vid_packet_length));
+        tqDebug ("%s", (TQString("Bad video packet length at %1: %2").arg(rtell (ptr)).arg(vid_packet_length)).ascii());
 
     return rc;
 }