diff --git a/ctest/fixtures.js b/ctest/fixtures.js
index faffab9..efdc607 100644
--- a/ctest/fixtures.js
+++ b/ctest/fixtures.js
@@ -1,9 +1,11 @@
+var m = "foobar"; for(var i = 0; i != 11; ++i) m+=m;
 var bits = [
 	[ "foobar", -1628037227, 1 ],
 	[ "foo bar baz", -228401567, 1 ],
 	[ "foo bar baz٪", 984445192 ],
 	[ "foo bar baz٪☃", 140429620],
-	[ "foo bar baz٪☃🍣", 1531648243]
+	[ "foo bar baz٪☃🍣", 1531648243],
+	[ m, 40270464, 1 ]
 ];
 if(typeof module !== "undefined") module.exports = bits;
 /* vim: set ts=2: */
diff --git a/ctest/test.js b/ctest/test.js
index d4ad85d..aa8f1e7 100644
--- a/ctest/test.js
+++ b/ctest/test.js
@@ -22,7 +22,7 @@ describe('crc32 bits', function() {
 	bits.forEach(function(i) {
 		var l = i[0].length;
 		var msg = i[0];
-		if(l > 20) i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
+		if(l > 20) msg = i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
 		it(msg, function() {
 			if(i[2] === 1) assert.equal(X.bstr(i[0]), i[1]|0);
 			assert.equal(X.str(i[0]), i[1]|0);
diff --git a/misc/bits.js b/misc/bits.js
index adec546..ad8fc48 100644
--- a/misc/bits.js
+++ b/misc/bits.js
@@ -1,8 +1,10 @@
+var m = "foobar"; for(var i = 0; i != 11; ++i) m+=m;
 var bits = [
 	[ "foobar", -1628037227, 1 ],
 	[ "foo bar baz", -228401567, 1 ],
 	[ "foo bar baz٪", 984445192 ],
 	[ "foo bar baz٪☃", 140429620],
-	[ "foo bar baz٪☃🍣", 1531648243]
+	[ "foo bar baz٪☃🍣", 1531648243],
+	[ m, 40270464, 1 ]
 ];
 if(typeof module !== "undefined") module.exports = bits;
diff --git a/test.js b/test.js
index d4ad85d..aa8f1e7 100644
--- a/test.js
+++ b/test.js
@@ -22,7 +22,7 @@ describe('crc32 bits', function() {
 	bits.forEach(function(i) {
 		var l = i[0].length;
 		var msg = i[0];
-		if(l > 20) i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
+		if(l > 20) msg = i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
 		it(msg, function() {
 			if(i[2] === 1) assert.equal(X.bstr(i[0]), i[1]|0);
 			assert.equal(X.str(i[0]), i[1]|0);