diff --git a/lib/parse.js b/lib/parse.js
index 1f82c74a..40528df1 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -111,7 +111,7 @@ var WHITESPACE_CHARS = makePredicate(characters(" \u00a0\n\r\t\f\u000b\u200b\u20
 
 var NEWLINE_CHARS = makePredicate(characters("\n\r\u2028\u2029"));
 
-var PUNC_BEFORE_EXPRESSION = makePredicate(characters("[{(,.;:"));
+var PUNC_BEFORE_EXPRESSION = makePredicate(characters("[{(,;:"));
 
 var PUNC_CHARS = makePredicate(characters("[]{}(),;:"));
 
diff --git a/test/input/invalid/dot_3.js b/test/input/invalid/dot_3.js
new file mode 100644
index 00000000..65573828
--- /dev/null
+++ b/test/input/invalid/dot_3.js
@@ -0,0 +1 @@
+a./();
diff --git a/test/mocha/cli.js b/test/mocha/cli.js
index 784cd37b..697c09a3 100644
--- a/test/mocha/cli.js
+++ b/test/mocha/cli.js
@@ -349,6 +349,21 @@ describe("bin/uglifyjs", function () {
            done();
        });
     });
+    it("Should throw syntax error (a./();)", function(done) {
+       var command = uglifyjscmd + ' test/input/invalid/dot_3.js';
+
+       exec(command, function (err, stdout, stderr) {
+           assert.ok(err);
+           assert.strictEqual(stdout, "");
+           assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
+               "Parse error at test/input/invalid/dot_3.js:1,2",
+               "a./();",
+               "  ^",
+               "ERROR: Unexpected token: operator (/)"
+           ].join("\n"));
+           done();
+       });
+    });
     it("Should throw syntax error ({%: 1})", function(done) {
        var command = uglifyjscmd + ' test/input/invalid/object.js';