diff --git a/baseline-error-prone/src/test/java/com/palantir/baseline/errorprone/StringBuilderConstantParametersTests.java b/baseline-error-prone/src/test/java/com/palantir/baseline/errorprone/StringBuilderConstantParametersTests.java
index d132f1a9b..d22b28faf 100644
--- a/baseline-error-prone/src/test/java/com/palantir/baseline/errorprone/StringBuilderConstantParametersTests.java
+++ b/baseline-error-prone/src/test/java/com/palantir/baseline/errorprone/StringBuilderConstantParametersTests.java
@@ -311,6 +311,30 @@ public void suggestedFixHandlesAddition() {
                 .doTest(BugCheckerRefactoringTestHelper.TestMode.TEXT_MATCH);
     }
 
+    @Test
+    public void suggestedFixHandlesMethodCalledOnBuilt() {
+        RefactoringValidator.of(StringBuilderConstantParameters.class, getClass())
+                .addInputLines(
+                        "Test.java",
+                        "class Test {",
+                        "   String f() {",
+                        "       return new StringBuilder()",
+                        "           .append(\"foo\")",
+                        "           .append(\"bar\")",
+                        "           .toString()",
+                        "           .toLowerCase();",
+                        "   }",
+                        "}")
+                .addOutputLines(
+                        "Test.java",
+                        "class Test {",
+                        "   String f() {",
+                        "       return (\"foo\"  + \"bar\").toLowerCase();",
+                        "   }",
+                        "}")
+                .doTest();
+    }
+
     @Test
     public void negativeDynamicStringBuilder() {
         compilationHelper