diff --git a/src/test/java/org/apache/geode/kafka/GeodeAsSinkDUnitTest.java b/src/test/java/org/apache/geode/kafka/GeodeAsSinkDUnitTest.java
index d8f1ab5..03b07aa 100644
--- a/src/test/java/org/apache/geode/kafka/GeodeAsSinkDUnitTest.java
+++ b/src/test/java/org/apache/geode/kafka/GeodeAsSinkDUnitTest.java
@@ -96,7 +96,7 @@
     int NUM_EVENT = 10;
 
     // Set unique names for all the different components
-    String testIdentifier = testName.getMethodName().replaceAll("\\[|\\]", "");
+    String testIdentifier = testName.getMethodName().replaceAll("[\\[\\]]", "");
     String sourceRegion = "SOURCE_REGION_" + testIdentifier;
     String sinkRegion = "SINK_REGION_" + testIdentifier;
     String sinkTopic = "SINK_TOPIC_" + testIdentifier;
diff --git a/src/test/java/org/apache/geode/kafka/GeodeAsSourceDUnitTest.java b/src/test/java/org/apache/geode/kafka/GeodeAsSourceDUnitTest.java
index 7a0f05f..44ef67b 100644
--- a/src/test/java/org/apache/geode/kafka/GeodeAsSourceDUnitTest.java
+++ b/src/test/java/org/apache/geode/kafka/GeodeAsSourceDUnitTest.java
@@ -108,7 +108,7 @@
     int NUM_EVENT = 10;
 
     // Set unique names for all the different components
-    String testIdentifier = testName.getMethodName().replaceAll("\\[|\\]", "");
+    String testIdentifier = testName.getMethodName().replaceAll("[\\[\\]]", "");
     String sourceRegion = "SOURCE_REGION_" + testIdentifier;
     String sinkRegion = "SINK_REGION_" + testIdentifier;
     String sinkTopic = "SINK_TOPIC_" + testIdentifier;