diff --git a/runtime/queries/nix/highlights.scm b/runtime/queries/nix/highlights.scm
index be9310bb..7a1a7cf4 100644
--- a/runtime/queries/nix/highlights.scm
+++ b/runtime/queries/nix/highlights.scm
@@ -88,6 +88,24 @@
       attrpath: (attrpath
         attr: (identifier) @function .))])
 
+; Pipe operators evaluate the side pointed to by the operator as a function:
+; `value |> lib.foo` and `lib.foo <| value`.
+(binary_expression
+  operator: "|>"
+  right: [
+    (variable_expression (identifier) @function)
+    (select_expression
+      attrpath: (attrpath
+        attr: (identifier) @function .))])
+
+(binary_expression
+  left: [
+    (variable_expression (identifier) @function)
+    (select_expression
+      attrpath: (attrpath
+        attr: (identifier) @function .))]
+  operator: "<|")
+
 (binding
   attrpath: (attrpath
     attr: (identifier) @function)
diff --git a/tests/query/highlights/nix/calls.nix b/tests/query/highlights/nix/calls.nix
index 242d28d8..acb65388 100644
--- a/tests/query/highlights/nix/calls.nix
+++ b/tests/query/highlights/nix/calls.nix
@@ -1,7 +1,11 @@
 {
   x = map double items;
-//    ^ @function.builtin
+#     ^ @function.builtin
   y = builtins.length items;
-//    ^ @constant.builtin
-//             ^ @function.builtin
+#     ^ @constant.builtin
+#              ^ @function.builtin
+  z = value |> lib.foo;
+#                  ^ @function
+  w = lib.foo <| value;
+#         ^ @function
 }