diff --git a/tools/test/bsnmp/Makefile b/tools/test/bsnmp/Makefile
index c3bcf832ff33..88bfcfd3c069 100644
--- a/tools/test/bsnmp/Makefile
+++ b/tools/test/bsnmp/Makefile
@@ -5,6 +5,7 @@ PROG_CXX=ctest
 SRCS= main.cc asn1.cc snmp_parse_server.cc
 CFLAGS += -I/${CONTRIB}/lib
 CXXFLAGS+= -std=c++2a
+CXXWARNFLAGS += -Wno-missing-variable-declarations
 LIBADD= bsnmp
 
 CFLAGS += -DBOGUS_CVE_2019_5610_FIX