diff --git a/NQ/net_dgrm.c b/NQ/net_dgrm.c
index 0db2522..13fbbbb 100644
--- a/NQ/net_dgrm.c
+++ b/NQ/net_dgrm.c
@@ -1321,7 +1321,7 @@ _Datagram_Connect(char *host, net_landriver_t *driver)
     ret = MSG_ReadByte();
     if (ret == CCREP_REJECT) {
 	reason = MSG_ReadString();
-	Con_Printf(reason);
+	Con_Printf("%s\n", reason);
 	strncpy(m_return_reason, reason, 31);
 	m_return_reason[31] = 0;
 	goto ErrorReturn;
diff --git a/NQ/sv_main.c b/NQ/sv_main.c
index b573036..a3f4310 100644
--- a/NQ/sv_main.c
+++ b/NQ/sv_main.c
@@ -321,7 +321,7 @@ SV_SendServerinfo(client_t *client)
     else
 	MSG_WriteByte(&client->message, GAME_COOP);
 
-    sprintf(message, PR_GetString(sv.edicts->v.message));
+    sprintf(message, "%s", PR_GetString(sv.edicts->v.message));
 
     MSG_WriteString(&client->message, message);
 
diff --git a/QW/server/pr_cmds.c b/QW/server/pr_cmds.c
index bbcfd8c..1043081 100644
--- a/QW/server/pr_cmds.c
+++ b/QW/server/pr_cmds.c
@@ -1565,7 +1565,7 @@ PF_logfrag(void)
 
     SZ_Print(&svs.log[svs.logsequence & 1], s);
     if (sv_fraglogfile) {
-	fprintf(sv_fraglogfile, s);
+	fprintf(sv_fraglogfile, "%s", s);
 	fflush(sv_fraglogfile);
     }
 }
diff --git a/common/console.c b/common/console.c
index c3b1a45..4803686 100644
--- a/common/console.c
+++ b/common/console.c
@@ -625,7 +625,7 @@ Con_NotifyBox(char *text)
     Con_Printf
 	("\n\n\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\37\n");
 
-    Con_Printf(text);
+    Con_Printf("%s", text);
 
     Con_Printf("Press a key.\n");
     Con_Printf