1 files changed, 4 insertions, 4 deletions

diff --git a/bin/harvest-commit-times b/bin/harvest-commit-times
index a978b41..7546aa4 100755
--- a/bin/harvest-commit-times
+++ b/bin/harvest-commit-times
@@ -76,9 +76,9 @@ trap 'rm "${tmp_file}"' EXIT
 
 if ! ${i_am_the_master}; then
   tmp_remote_file=$(
-    ssh buildmaster "mktemp 'tmp.harvest-commit-times.remotely.XXXXXXXXXX' --tmpdir"
+    ssh -o PasswordAuthentication=No buildmaster "mktemp 'tmp.harvest-commit-times.remotely.XXXXXXXXXX' --tmpdir"
   )
-  trap 'rm "${tmp_file}"; ssh buildmaster rm "${tmp_remote_file}"' EXIT
+  trap 'rm "${tmp_file}"; ssh -o PasswordAuthentication=No buildmaster rm "${tmp_remote_file}"' EXIT
 fi
 
 while true; do
@@ -127,7 +127,7 @@ while true; do
 
   if [ -s "${tmp_file}" ]; then
     if ! ${i_am_the_master}; then
-      ssh buildmaster 'cat > "'"${tmp_remote_file}"'"' < \
+      ssh -o PasswordAuthentication=No buildmaster 'cat > "'"${tmp_remote_file}"'"' < \
         "${tmp_file}"
     fi
     # shellcheck disable=SC2016
@@ -149,7 +149,7 @@ while true; do
       if ${i_am_the_master}; then
         mysql_run_query 'unimportant'
       else
-        ssh buildmaster 'mysql buildmaster -N --raw --batch'
+        ssh -o PasswordAuthentication=No buildmaster 'mysql buildmaster -N --raw --batch'
       fi
   else
     >&2 printf '\n'