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-rw-r--r--doc/manual/command-ref/conf-file.xml3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/manual/command-ref/conf-file.xml b/doc/manual/command-ref/conf-file.xml
index d2c9c7502ebb..e818a74cd400 100644
--- a/doc/manual/command-ref/conf-file.xml
+++ b/doc/manual/command-ref/conf-file.xml
@@ -674,6 +674,7 @@ password <replaceable>my-password</replaceable>
         <listitem><para>The hook does not execute on substituted paths.</para></listitem>
         <listitem><para>The hook's output always goes to the user's terminal.</para></listitem>
         <listitem><para>If the hook fails, the build succeeds but no further builds execute.</para></listitem>
+        <listitem><para>The hook executes synchronously, and blocks other builds from progressing while it runs.</para>
       </itemizedlist>
 
       <para>The program executes with no arguments. The program's environment
@@ -693,7 +694,7 @@ password <replaceable>my-password</replaceable>
         <varlistentry>
           <term><envar>OUT_PATHS</envar></term>
           <listitem>
-            <para>Output paths of the built derivation, separated by a space (<literal> </literal>) character.</para>
+            <para>Output paths of the built derivation, separated by a space character.</para>
             <para>Example:
             <literal>/nix/store/zf5lbh336mnzf1nlswdn11g4n2m8zh3g-bash-4.4-p23-dev
             /nix/store/rjxwxwv1fpn9wa2x5ssk5phzwlcv4mna-bash-4.4-p23-doc