diff --git a/depends/packages/libsodium.mk b/depends/packages/libsodium.mk
index 65baaa9a8..965dd8524 100644
--- a/depends/packages/libsodium.mk
+++ b/depends/packages/libsodium.mk
@@ -16,8 +16,12 @@ define $(package)_set_vars
 endef
 endif
 
+# libsodium's autogen.sh otherwise fetches config.sub/config.guess from
+# git.savannah.gnu.org gitweb, which is frequently down (502) and writes the error
+# page over config.sub, breaking configure. autoreconf -ivf (run first) already
+# installs valid copies, so tell autogen.sh to skip the download.
 define $(package)_preprocess_cmds
-  cd $($(package)_build_subdir); ./autogen.sh
+  cd $($(package)_build_subdir); DO_NOT_UPDATE_CONFIG_SCRIPTS=1 ./autogen.sh
 endef
 
 define $(package)_config_cmds