diff --git a/src/jshint.js b/src/jshint.js
index 9ffda3e033..9f9493d388 100644
--- a/src/jshint.js
+++ b/src/jshint.js
@@ -924,7 +924,7 @@ var JSHINT = (function() {
       state.tokens.curr.beginsStmt = true;
     }
 
-    if (initial === true && state.tokens.curr.fud) {
+    if (initial && state.tokens.curr.fud) {
       left = state.tokens.curr.fud();
     } else {
       if (state.tokens.curr.nud) {
@@ -4514,7 +4514,7 @@ var JSHINT = (function() {
           state.tokens.curr.fud();
         } else {
           for (;;) {
-            expression(0, "for");
+            expression(0);
             if (state.tokens.next.id !== ",") {
               break;
             }
@@ -4538,7 +4538,7 @@ var JSHINT = (function() {
       }
       if (state.tokens.next.id !== ")") {
         for (;;) {
-          expression(0, "for");
+          expression(0);
           if (state.tokens.next.id !== ",") {
             break;
           }
diff --git a/tests/unit/options.js b/tests/unit/options.js
index 5fce47b755..d81d34ca84 100644
--- a/tests/unit/options.js
+++ b/tests/unit/options.js
@@ -3330,13 +3330,17 @@ singleGroups.objectLiterals = function (test) {
     // Invalid forms
     "var a = ({}).method();",
     "if (({}).method()) {}",
-    "var b = { a: ({}).method() };"
+    "var b = { a: ({}).method() };",
+    "for (({}); ;) {}",
+    "for (; ;({})) {}"
   ];
 
   TestRun(test, "grouping operator not required")
     .addError(4, 9, "Unnecessary grouping operator.")
     .addError(5, 5, "Unnecessary grouping operator.")
     .addError(6, 14, "Unnecessary grouping operator.")
+    .addError(7, 6, "Unnecessary grouping operator.")
+    .addError(8, 9, "Unnecessary grouping operator.")
     .test(code, { singleGroups: true });
 
   test.done();
@@ -3458,13 +3462,17 @@ singleGroups.destructuringAssign = function (test) {
     "([ x ] = [ 1 ]);",
     // expressions
     "1, ({ x } = { x : 1 });",
-    "1, ([ x ] = [ 1 ]);"
+    "1, ([ x ] = [ 1 ]);",
+    "for (({ x } = { X: 1 }); ;) {}",
+    "for (; ;({ x } = { X: 1 })) {}"
   ];
 
   TestRun(test)
     .addError(2, 1, "Unnecessary grouping operator.")
     .addError(3, 4, "Unnecessary grouping operator.")
     .addError(4, 4, "Unnecessary grouping operator.")
+    .addError(5, 6, "Unnecessary grouping operator.")
+    .addError(6, 9, "Unnecessary grouping operator.")
     .test(code, { esversion: 6, singleGroups: true, expr: true });
 
   test.done();
diff --git a/tests/unit/parser.js b/tests/unit/parser.js
index 7680b477c3..15dfae989d 100644
--- a/tests/unit/parser.js
+++ b/tests/unit/parser.js
@@ -3148,7 +3148,8 @@ exports["let block and let expression"] = function (test) {
     "{",
     "  let(t=4) print(x, y, z, t);",
     "  print(let(u=4) u,x);",
-    "}"
+    "}",
+    "for (; ; let (x = 1) x) {}"
   ];
 
   TestRun(test)
@@ -3163,7 +3164,8 @@ exports["let block and let expression as esnext"] = function (test) {
     "{",
     "  let(t=4) print(x, y, z, t);",
     "  print(let(u=4) u,x);",
-    "}"
+    "}",
+    "for (; ; let (x = 1) x) {}"
   ];
 
   TestRun(test)
@@ -3171,6 +3173,8 @@ exports["let block and let expression as esnext"] = function (test) {
     .addError(3, 6, "'let block' is only available in Mozilla JavaScript extensions (use moz option).")
     .addError(4, 9, "'let expressions' is only available in Mozilla JavaScript extensions " +
       "(use moz option).")
+    .addError(6, 10, "'let expressions' is only available in Mozilla JavaScript extensions " +
+      "(use moz option).")
     .test(code, {esnext: true, unused: true, undef: true, predef: ["print"]});
   test.done();
 };