diff --git a/dd-java-agent/agent-debugger/src/main/java/com/datadog/debugger/util/DebuggerMetrics.java b/dd-java-agent/agent-debugger/src/main/java/com/datadog/debugger/util/DebuggerMetrics.java
index 3d656089e38..cedb952fe94 100644
--- a/dd-java-agent/agent-debugger/src/main/java/com/datadog/debugger/util/DebuggerMetrics.java
+++ b/dd-java-agent/agent-debugger/src/main/java/com/datadog/debugger/util/DebuggerMetrics.java
@@ -29,7 +29,7 @@ private DebuggerMetrics(Config config) {
     }
   }
 
-  public static DebuggerMetrics getInstance(Config config) {
+  public static synchronized DebuggerMetrics getInstance(Config config) {
     if (INSTANCE == null) {
       INSTANCE = new DebuggerMetrics(config);
     }