diff --git a/src/ngircd/ngircd.c b/src/ngircd/ngircd.c
index 76ea8d38..772d9db6 100644
--- a/src/ngircd/ngircd.c
+++ b/src/ngircd/ngircd.c
@@ -341,11 +341,13 @@ Fill_Version(void)
 	strlcat(NGIRCd_VersionAddition, "CHARCONV",
 		sizeof NGIRCd_VersionAddition);
 #endif
+#ifdef DEBUG
 	if (NGIRCd_VersionAddition[0])
 		strlcat(NGIRCd_VersionAddition, "+",
 			sizeof NGIRCd_VersionAddition);
 	strlcat(NGIRCd_VersionAddition, "DEBUG",
 		sizeof NGIRCd_VersionAddition);
+#endif
 #ifdef IDENTAUTH
 	if (NGIRCd_VersionAddition[0])
 		strlcat(NGIRCd_VersionAddition, "+",