diff --git a/documentation-support/src/test/java/tech/picnic/errorprone/documentation/BugPatternExtractorTest.java b/documentation-support/src/test/java/tech/picnic/errorprone/documentation/BugPatternExtractorTest.java
index 1737f32ac46..da6467c78de 100644
--- a/documentation-support/src/test/java/tech/picnic/errorprone/documentation/BugPatternExtractorTest.java
+++ b/documentation-support/src/test/java/tech/picnic/errorprone/documentation/BugPatternExtractorTest.java
@@ -14,7 +14,6 @@
 import com.google.errorprone.matchers.Description;
 import com.sun.source.tree.ClassTree;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
@@ -120,7 +119,8 @@ void bugPatternAnnotationIsAbsent() {
 
   private static void verifyFileMatchesResource(
       Path outputDirectory, String fileName, String resourceName) throws IOException {
-    assertThat(Files.readString(outputDirectory.resolve(fileName)))
+    assertThat(outputDirectory.resolve(fileName))
+        .content(UTF_8)
         .isEqualToIgnoringWhitespace(getResource(resourceName));
   }