diff --git a/getssl b/getssl
index af7848d..7ff71bb 100755
--- a/getssl
+++ b/getssl
@@ -1418,6 +1418,8 @@ for d in "${alldomains[@]}"; do
         # get the token and uri from the dns-01 component
         token=$(json_get "$response" "challenges" "type" "dns-01" "token")
         uri=$(json_get "$response" "challenges" "type" "dns-01" "url")
+        # when using pebble this sometimes appears to have a newline which causes problems in send_signed_request
+        uri=$(echo "$uri" | tr -d '\r')
         debug uri "$uri"
       fi
 
diff --git a/test/test_helper.bash b/test/test_helper.bash
index 4688300..4a02872 100644
--- a/test/test_helper.bash
+++ b/test/test_helper.bash
@@ -38,8 +38,8 @@ check_github_quota() {
     fi
     now="$(date +%s)"
     while [[ "$now" -lt "$reset" ]] ; do
-      echo "# sleeping $(( "$reset" - "$now" )) seconds for GitHub quota"
-      sleep "$(( "$reset" - "$now" ))"
+      echo "# sleeping $(( reset - now )) seconds for GitHub quota"
+      sleep "$(( reset - now ))"
       now="$(date +%s)"
    done
   done