diff --git a/lib/tool_shed/galaxy_install/repository_dependencies/repository_dependency_manager.py b/lib/tool_shed/galaxy_install/repository_dependencies/repository_dependency_manager.py
index 84ecad9c750..b03417da16f 100644
--- a/lib/tool_shed/galaxy_install/repository_dependencies/repository_dependency_manager.py
+++ b/lib/tool_shed/galaxy_install/repository_dependencies/repository_dependency_manager.py
@@ -419,7 +419,7 @@ class RepositoryDependencyInstallManager( object ):
                                         # A single install transaction might require the installation of 2 or more repos
                                         # with the same repo name but different owners or versions.
                                         # Therefore, if required_repo_info_dict_key is already in all_repo_info_dicts,
-                                        # check that the tool id is already present. If no it is not, we are dealing with the same repo name,
+                                        # check that the tool id is already present. If it is not, we are dealing with the same repo name,
                                         # but a different owner/changeset revision or version and we add the repo to the list of repos to be installed.
                                         tool_id = required_repo_info_dict[ required_repo_info_dict_key ][ 1 ]
                                         is_present = False