diff --git a/test/constcheck.sh b/test/constcheck.sh
index 4681d358..994c1642 100755
--- a/test/constcheck.sh
+++ b/test/constcheck.sh
@@ -13,6 +13,7 @@ for macro in $(egrep -r '#define crypto_.*BYTES(_[A-Z]+)? ' src/libsodium/includ
 done
 echo "return 0; }" >> "$CT"
 
+CPPFLAGS="${CPPFLAGS} -Wno-deprecated-declarations"
 ${CC:-cc} "$CT" $CPPFLAGS $CFLAGS $LDFLAGS -lsodium || exit 1
 ./a.out || exit 1
 rm -f a.out "$CT"