DNS: fix warning when debug is not enabled

diff --git a/src/app-layer-dns-tcp.c b/src/app-layer-dns-tcp.c
index f1d023765579f43dead2f8a744a489ca902b60c8..73602dfee51658e5b6067eb4ad288b3320cc6e6f 100644 (file)
--- a/src/app-layer-dns-tcp.c
+++ b/src/app-layer-dns-tcp.c
@@ -134,8 +134,10 @@ static int DNSTCPRequestParseProbe(uint8_t *input, uint32_t input_len)
             SCLogDebug("input buffer too small for DNSQueryTrailer");
             goto insufficient_data;
         }
+#ifdef DEBUG
         DNSQueryTrailer *trailer = (DNSQueryTrailer *)data;
         SCLogDebug("trailer type %04x class %04x", ntohs(trailer->type), ntohs(trailer->class));
+#endif
         data += sizeof(DNSQueryTrailer);
     }