diff --git a/src/plugin/Plugin.h b/src/plugin/Plugin.h
index 32359b4686..3562891e84 100644
--- a/src/plugin/Plugin.h
+++ b/src/plugin/Plugin.h
@@ -14,7 +14,7 @@
 
 // We allow to override this externally for testing purposes.
 #ifndef BRO_PLUGIN_API_VERSION
-#define BRO_PLUGIN_API_VERSION 2
+#define BRO_PLUGIN_API_VERSION 3
 #endif
 
 class ODesc;