diff --git a/Makefile b/Makefile
index 5ac8243d..874bdc8c 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,6 @@ plugin: configure
 	$(MAKE) -C out/
 
 _travis: plugin
-	TEST_LLDB_BINARY=`which lldb-3.9` npm test
+	TEST_LLDB_BINARY=`which lldb-3.9` TEST_LLNODE_DEBUG=true npm test
 
 .PHONY: all
diff --git a/test/common.js b/test/common.js
index 2316f017..b9ebab7a 100644
--- a/test/common.js
+++ b/test/common.js
@@ -17,7 +17,7 @@ function llnodeDebug(...args) {
 }
 
 const debug = exports.debug =
-  process.env.LLNODE_DEBUG ? llnodeDebug : () => { };
+  process.env.TEST_LLNODE_DEBUG ? llnodeDebug : () => { };
 
 let pluginName;
 if (process.platform === 'darwin')