diff --git a/lib/DefinePlugin.js b/lib/DefinePlugin.js
index e02588614..3fe698347 100644
--- a/lib/DefinePlugin.js
+++ b/lib/DefinePlugin.js
@@ -68,6 +68,7 @@ class DefinePlugin {
 						parser.plugin("can-rename " + key, ParserHelpers.approve);
 						parser.plugin("evaluate Identifier " + key, (expr) => {
 							if(recurse) return;
+							recurse = true;
 							const res = parser.evaluate(code);
 							recurse = false;
 							res.setRange(expr.range);
@@ -78,6 +79,7 @@ class DefinePlugin {
 					const typeofCode = isTypeof ? code : "typeof (" + code + ")";
 					parser.plugin("evaluate typeof " + key, (expr) => {
 						if(recurseTypeof) return;
+						recurseTypeof = true;
 						const res = parser.evaluate(typeofCode);
 						recurseTypeof = false;
 						res.setRange(expr.range);