3 files changed, 8 insertions, 2 deletions
diff --git a/lib/license/management/python.rb b/lib/license/management/python.rb
index c5f7107..b8932f9 100644
--- a/lib/license/management/python.rb
+++ b/lib/license/management/python.rb
@@ -50,6 +50,12 @@ module License
           )
         end
       end
+
+      def default_env
+        return {} unless shell.custom_certificate_installed?
+
+        { 'PIP_CERT' => ENV.fetch('PIP_CERT', shell.custom_certificate_path.to_s) }
+      end
     end
   end
 end
diff --git a/lib/license/management/shell.rb b/lib/license/management/shell.rb
index 691a8ea..8850e60 100644
--- a/lib/license/management/shell.rb
+++ b/lib/license/management/shell.rb
@@ -33,7 +33,7 @@ module License
       private
 
       def expand(command)
-        Array(command).map(&:to_s).join(' ')
+        Array(command).flatten.map(&:to_s).join(' ')
       end
 
       def trust!(certificate)
diff --git a/lib/license/management/version.rb b/lib/license/management/version.rb
index b422fd6..fe617f9 100644
--- a/lib/license/management/version.rb
+++ b/lib/license/management/version.rb
@@ -2,6 +2,6 @@
 
 module License
   module Management
-    VERSION = '3.7.0'
+    VERSION = '3.7.1'
   end
 end