diff --git a/tools/junit/src/main/java/org/teavm/junit/TeaVMTestRunner.java b/tools/junit/src/main/java/org/teavm/junit/TeaVMTestRunner.java
index fa6a95189..442f9eff6 100644
--- a/tools/junit/src/main/java/org/teavm/junit/TeaVMTestRunner.java
+++ b/tools/junit/src/main/java/org/teavm/junit/TeaVMTestRunner.java
@@ -982,6 +982,7 @@ public class TeaVMTestRunner extends Runner implements Filterable {
             switch (c) {
                 case '"':
                     writer.write("\\\"");
+                    break;
                 case '\\':
                     writer.write("\\\\");
                     break;