diff --git a/plugins/sysinfo/xsys.c b/plugins/sysinfo/xsys.c
index 474729c5..4ab6e873 100644
--- a/plugins/sysinfo/xsys.c
+++ b/plugins/sysinfo/xsys.c
@@ -750,7 +750,7 @@ sysinfo_cb (char *word[], char *word_eol[], void *userdata)
 
 	if (!g_ascii_strcasecmp ("HELP", word[2+offset]))
 	{
-		hexchat_printf (ph, sysinfo_help);
+		hexchat_printf (ph, "%s", sysinfo_help);
 		return HEXCHAT_EAT_ALL;
 	}
 	else if (!g_ascii_strcasecmp ("LIST", word[2+offset]))
@@ -870,7 +870,7 @@ sysinfo_cb (char *word[], char *word_eol[], void *userdata)
 	}
 	else
 	{
-		hexchat_printf (ph, sysinfo_help);
+		hexchat_printf (ph, "%s", sysinfo_help);
 		return HEXCHAT_EAT_ALL;
 	}
 }
diff --git a/plugins/upd/upd.c b/plugins/upd/upd.c
index 7ebf95bc..6fcf3be9 100644
--- a/plugins/upd/upd.c
+++ b/plugins/upd/upd.c
@@ -128,7 +128,7 @@ print_version (char *word[], char *word_eol[], void *userdata)
 
 	if (!g_ascii_strcasecmp ("HELP", word[2]))
 	{
-		hexchat_printf (ph, upd_help);
+		hexchat_printf (ph, "%s", upd_help);
 		return HEXCHAT_EAT_HEXCHAT;
 	}
 	else if (!g_ascii_strcasecmp ("SET", word[2]))
@@ -200,7 +200,7 @@ print_version (char *word[], char *word_eol[], void *userdata)
 	}
 	else
 	{
-		hexchat_printf (ph, upd_help);
+		hexchat_printf (ph, "%s", upd_help);
 		return HEXCHAT_EAT_HEXCHAT;
 	}
 }