diff --git a/define-test.js b/define-test.js
index 9398f8a..e04de66 100644
--- a/define-test.js
+++ b/define-test.js
@@ -1370,40 +1370,44 @@ QUnit.test('define() should add a CID (#246)', function() {
 	QUnit.ok(g._cid, "should have a CID property");
 });
 
-QUnit.test("warn on using a Constructor for small-t type definintions", function() {
-	expect(2);
-	var oldWarn = canDev.warn;
-	canDev.warn = function(mesg) {
-		QUnit.equal(mesg, "can-define: the definition for currency uses a constructor for \"type\". Did you mean \"Type\"?");
-	};
+if (System.env.indexOf("production") < 0) {
 
-	function Currency() {
-		return this;
-	}
-	Currency.prototype = {
-		symbol: "USD"
-	};
+	QUnit.test("warn on using a Constructor for small-t type definintions", function() {
+		expect(2);
+		var oldWarn = canDev.warn;
+		canDev.warn = function(mesg) {
+			QUnit.equal(mesg, "can-define: the definition for currency uses a constructor for \"type\". Did you mean \"Type\"?");
+		};
 
-	function VM() {}
-	define(VM.prototype, {
-	    currency: {
-	        type: Currency, // should be `Type: Currency`
-	        value: new Currency({})
-	    }
-	});
+		function Currency() {
+			return this;
+		}
+		Currency.prototype = {
+			symbol: "USD"
+		};
 
-	canDev.warn = function(mesg) {
-		QUnit.equal(mesg, "can-define: the definition for currency on VM2 uses a constructor for \"type\". Did you mean \"Type\"?");
-	};
+		function VM() {}
+		define(VM.prototype, {
+		    currency: {
+		        type: Currency, // should be `Type: Currency`
+		        value: new Currency({})
+		    }
+		});
+
+		canDev.warn = function(mesg) {
+			QUnit.equal(mesg, "can-define: the definition for currency on VM2 uses a constructor for \"type\". Did you mean \"Type\"?");
+		};
+
+		function VM2() {}
+		VM2.shortName = "VM2";
+		define(VM2.prototype, {
+		    currency: {
+		        type: Currency, // should be `Type: Currency`
+		        value: new Currency({})
+		    }
+		});
 
-	function VM2() {}
-	VM2.shortName = "VM2";
-	define(VM2.prototype, {
-	    currency: {
-	        type: Currency, // should be `Type: Currency`
-	        value: new Currency({})
-	    }
+		canDev.warn = oldWarn;
 	});
 
-	canDev.warn = oldWarn;
-});
\ No newline at end of file
+}
\ No newline at end of file