diff --git a/nixos/doc/manual/development/writing-modules.xml b/nixos/doc/manual/development/writing-modules.xml
index 9cf29e5dc57d..a699e74e5f62 100644
--- a/nixos/doc/manual/development/writing-modules.xml
+++ b/nixos/doc/manual/development/writing-modules.xml
@@ -158,7 +158,7 @@ let locatedb = "/var/cache/locatedb"; in
         script =
           ''
             mkdir -m 0755 -p $(dirname ${locatedb})
-            exec updatedb --localuser=nobody --output=${locatedb} --prunepaths='/tmp /var/tmp /media /run'
+            exec updatedb --localuser=nobody --output=${locatedb} --prunepaths='/tmp /var/tmp /run'
           '';
       };
 
@@ -172,4 +172,4 @@ let locatedb = "/var/cache/locatedb"; in
 <xi:include href="option-declarations.xml" />
 <xi:include href="option-def.xml" />
 
-</chapter>
\ No newline at end of file
+</chapter>