diff --git a/debian/changelog b/debian/changelog
index c86888e..c622461 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -11,6 +11,7 @@ ubuntu-dev-tools (0.140) UNRELEASED; urgency=low
       (LP: #693217)
   * requestsync:
     - New packages from non-free or contrib go into multiverse (LP: #935643)
+    - Catch SeriesNotFoundException and display a friendly error (LP: #963888)
 
   [ Daniel Hahler ]
   * ubuntutools/archive.py: use ProxyHandler in _download_file.
diff --git a/requestsync b/requestsync
index 9c5b6e5..c6b01c0 100755
--- a/requestsync
+++ b/requestsync
@@ -217,6 +217,9 @@ def main():
                    % (srcpkg, release))
             confirmation_prompt()
             newsource = True
+    except udtexceptions.SeriesNotFoundException, error:
+        print >> sys.stderr, "E: %s" % error
+        sys.exit(1)
 
     # Get the requested Debian source package
     try:
@@ -226,6 +229,9 @@ def main():
     except udtexceptions.PackageNotFoundException, error:
         print >> sys.stderr, "E: %s" % error
         sys.exit(1)
+    except udtexceptions.SeriesNotFoundException, error:
+        print >> sys.stderr, "E: %s" % error
+        sys.exit(1)
 
     if ubuntu_component is None:
         if debian_component == 'main':