diff --git a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
index 11f8586..d564cea 100644
--- a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
+++ b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
@@ -173,7 +173,7 @@
     @Override
     public boolean changesSince(SCMRevision revision, @NonNull OutputStream changeLogStream)
             throws UnsupportedOperationException, IOException, InterruptedException {
-        if (getRevision() == null ? revision == null : getRevision().equals(revision)) {
+        if (revision == null ? getRevision() == null : revision.equals(getRevision())) {
             // special case where somebody is asking one of two stupid questions:
             // 1. what has changed between the latest and the latest
             // 2. what has changed between the current revision and the current revision
diff --git a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMNavigator.java b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMNavigator.java
index aa7e7ea..5b561e4 100644
--- a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMNavigator.java
+++ b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMNavigator.java
@@ -30,6 +30,7 @@
 import java.io.InputStreamReader;
 import java.net.URL;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
@@ -168,7 +169,10 @@
                 .withTraits(traits)
                 .newRequest(this, observer);
              BufferedReader reader = new BufferedReader(
-                     new InputStreamReader(new URL(server + "?a=project_index").openStream()))) {
+                     new InputStreamReader(
+                             new URL(server + "?a=project_index").openStream(),
+                             StandardCharsets.UTF_8 // content is always US-ASCII but content type says UTF-8
+                     ))) {
             int count = 0;
             String line;
             observer.getListener().getLogger().format("%n  Checking repositories...%n");