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-rw-r--r--doc/manual/writing-nix-expressions.xml5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/manual/writing-nix-expressions.xml b/doc/manual/writing-nix-expressions.xml
index d9c78dbecb9d..222092f63852 100644
--- a/doc/manual/writing-nix-expressions.xml
+++ b/doc/manual/writing-nix-expressions.xml
@@ -1047,6 +1047,11 @@ weakest binding).</para>
         <replaceable>id</replaceable>.</entry>
       </row>
       <row>
+        <entry><replaceable>e1</replaceable> ++ <replaceable>e2</replaceable></entry>
+        <entry>right</entry>
+        <entry>List concatenation.</entry>
+      </row>
+      <row>
         <entry><replaceable>e1</replaceable> + <replaceable>e2</replaceable></entry>
         <entry>left</entry>
         <entry>String or path concatenation.</entry>