diff --git a/pills/06-our-first-derivation.xml b/pills/06-our-first-derivation.xml
index 7769f89..bfcc40f 100644
--- a/pills/06-our-first-derivation.xml
+++ b/pills/06-our-first-derivation.xml
@@ -8,7 +8,7 @@
   <para>
     Welcome to the sixth Nix pill. In the previous <link
     linkend="functions-and-imports">fifth pill</link> we introduced functions
-    and imports. Functions and imports are very simple concepts that allows for
+    and imports. Functions and imports are very simple concepts that allow for
     building complex abstractions and composition of modules to build a flexible
     Nix system.
   </para>