diff --git a/common/lib/xmodule/xmodule/library_content_module.py b/common/lib/xmodule/xmodule/library_content_module.py
index 4b21f66252..43f1d7b01e 100644
--- a/common/lib/xmodule/xmodule/library_content_module.py
+++ b/common/lib/xmodule/xmodule/library_content_module.py
@@ -471,7 +471,7 @@ class LibraryContentDescriptor(LibraryContentFields, MakoModuleDescriptor, XmlDe
                             self.max_count
                         ) +
                         ngettext(
-                            u'but there are only {actual} matching problem.',
+                            u'but there is only {actual} matching problem.',
                             u'but there are only {actual} matching problems.',
                             matching_children_count
                         )