diff --git a/docs/reference/esql/functions/signature/match_operator.svg b/docs/reference/esql/functions/signature/match_operator.svg
new file mode 100644
index 0000000000000..3ba814bf439a8
--- /dev/null
+++ b/docs/reference/esql/functions/signature/match_operator.svg
@@ -0,0 +1 @@
+<svg version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" width="222" height="46" viewbox="0 0 222 46"><defs><style type="text/css">#guide .c{fill:none;stroke:#222222;}#guide .j{fill:#000000;font-family:Roboto Mono,Sans-serif;font-size:20px;}#guide .l{fill:#e4f4ff;stroke:#222222;}#guide .syn{fill:#8D8D8D;font-family:Roboto Mono,Sans-serif;font-size:20px;}</style></defs><path class="c" d="M0 31h5m80 0h10m32 0h10m80 0h5"/><rect class="l" x="5" y="5" width="80" height="36" rx="7"/><text class="j" x="15" y="31">field</text><rect class="l" x="95" y="5" width="32" height="36" rx="7"/><text class="syn" x="105" y="31">:</text><rect class="l" x="137" y="5" width="80" height="36" rx="7"/><text class="j" x="147" y="31">value</text></svg>
\ No newline at end of file
diff --git a/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/RailRoadDiagram.java b/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/RailRoadDiagram.java
index f4bb4f4a12dbb..43e2ededeff0e 100644
--- a/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/RailRoadDiagram.java
+++ b/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/RailRoadDiagram.java
@@ -97,7 +97,7 @@ static String searchOperator(String operator) throws IOException {
         List<Expression> expressions = new ArrayList<>();
         expressions.add(new Literal("field"));
         expressions.add(new Syntax(operator));
-        expressions.add(new Literal("value"));
+        expressions.add(new Literal("query"));
         return toSvg(new Sequence(expressions.toArray(Expression[]::new)));
     }