diff --git a/build-aux/syntax-check.mk b/build-aux/syntax-check.mk
index 6b62e20ed43605dd56c861d8bc8d5afd653f92a5..f1e976ec769712dcd5ccd3c20fc3ce0e1abea3e1 100644
--- a/build-aux/syntax-check.mk
+++ b/build-aux/syntax-check.mk
@@ -482,6 +482,11 @@ sc_prohibit_sprintf:
 	halt='use g_snprintf, not sprintf' \
 	  $(_sc_search_regexp)
 
+sc_prohibit_snprintf:
+	@prohibit='\<snprintf\>' \
+	halt='use g_snprintf, not snprintf' \
+	  $(_sc_search_regexp)
+
 sc_prohibit_readlink:
 	@prohibit='\<readlink *\(' \
 	halt='use virFileResolveLink, not readlink' \
@@ -2277,6 +2282,9 @@ exclude_file_name_regexp--sc_prohibit_setuid = ^src/util/virutil\.c|tools/virt-l
 exclude_file_name_regexp--sc_prohibit_sprintf = \
   ^(build-aux/syntax-check\.mk|docs/hacking\.html\.in|.*\.stp|.*\.pl)$$
 
+exclude_file_name_regexp--sc_prohibit_snprintf = \
+  ^(build-aux/syntax-check\.mk|docs/hacking\.html\.in|tools/virt-login-shell\.c)$$
+
 exclude_file_name_regexp--sc_prohibit_strncpy = ^src/util/virstring\.c$$
 
 exclude_file_name_regexp--sc_prohibit_strtol = ^examples/.*$$