diff --git a/src/Psalm/Type/ParseTree.php b/src/Psalm/Type/ParseTree.php
index 66bd33c78..8e8ba2f42 100644
--- a/src/Psalm/Type/ParseTree.php
+++ b/src/Psalm/Type/ParseTree.php
@@ -99,11 +99,16 @@ class ParseTree
                     break;
 
                 case ')':
+                    if ($last_token === '(' && $current_leaf instanceof ParseTree\CallableTree) {
+                        break;
+                    }
+
                     do {
                         if ($current_leaf->parent === null
                             || $current_leaf->parent instanceof ParseTree\CallableWithReturnTypeTree
                         ) {
                             if (!$current_leaf instanceof ParseTree\CallableTree) {
+                                var_dump($current_leaf);
                                 throw new TypeParseTreeException('Cannot parse generic type');
                             }
 
diff --git a/tests/AnnotationTest.php b/tests/AnnotationTest.php
index 8251dd7d5..0a35e4e97 100644
--- a/tests/AnnotationTest.php
+++ b/tests/AnnotationTest.php
@@ -752,6 +752,52 @@ class AnnotationTest extends TestCase
                      */
                     function example(string $x) : void {}',
             ],
+            'megaClosureAnnotationWithoutSpacing' => [
+                '<?php
+                    /** @var array{a:Closure():(array<mixed, mixed>|null), b?:Closure():array<mixed, mixed>, c?:Closure():array<mixed, mixed>, d?:Closure():array<mixed, mixed>, e?:Closure():(array{f:null|string, g:null|string, h:null|string, i:string, j:mixed, k:mixed, l:mixed, m:mixed, n:bool, o?:array{0:string}}|null), p?:Closure():(array{f:null|string, g:null|string, h:null|string, q:string, i:string, j:mixed, k:mixed, l:mixed, m:mixed, n:bool, o?:array{0:string}}|null), r?:Closure():(array<mixed, mixed>|null), s:array<mixed, mixed>} */
+                    $arr = [];
+
+                    $arr["a"]()',
+            ],
+            'megaClosureAnnotationWithSpacing' => [
+                '<?php
+                    /** @var array{
+                      a: Closure() : (array<mixed, mixed>|null),
+                      b?: Closure() : array<mixed, mixed>,
+                      c?: Closure() : array<mixed, mixed>,
+                      d?: Closure() : array<mixed, mixed>,
+                      e?: Closure() : (array{
+                        f: null|string,
+                        g: null|string,
+                        h: null|string,
+                        i: string,
+                        j: mixed,
+                        k: mixed,
+                        l: mixed,
+                        m: mixed,
+                        n: bool,
+                        o?: array{0:string}
+                      }|null),
+                      p?: Closure() : (array{
+                        f: null|string,
+                        g: null|string,
+                        h: null|string,
+                        q: string,
+                        i: string,
+                        j: mixed,
+                        k: mixed,
+                        l: mixed,
+                        m: mixed,
+                        n: bool,
+                        o?: array{0:string}
+                      }|null),
+                      r?: Closure() : (array<mixed, mixed>|null),
+                      s: array<mixed, mixed>
+                    } */
+                    $arr = [];
+
+                    $arr["a"]()',
+            ],
         ];
     }
 
diff --git a/tests/TypeParseTest.php b/tests/TypeParseTest.php
index 82c67e2fd..844d7e3d3 100644
--- a/tests/TypeParseTest.php
+++ b/tests/TypeParseTest.php
@@ -10,7 +10,7 @@ class TypeParseTest extends TestCase
      */
     public function setUp()
     {
-        //parent::setUp();
+        //pae::setUp();
     }
 
     /**
@@ -469,6 +469,19 @@ class TypeParseTest extends TestCase
         );
     }
 
+    /**
+     * @return void
+     */
+    public function testVeryLargeType()
+    {
+        $very_large_type = 'array{a:Closure():(array<mixed, mixed>|null), b?:Closure():array<mixed, mixed>, c?:Closure():array<mixed, mixed>, d?:Closure():array<mixed, mixed>, e?:Closure():(array{f:null|string, g:null|string, h:null|string, i:string, j:mixed, k:mixed, l:mixed, m:mixed, n:bool, o?:array{0:string}}|null), p?:Closure():(array{f:null|string, g:null|string, h:null|string, q:string, i:string, j:mixed, k:mixed, l:mixed, m:mixed, n:bool, o?:array{0:string}}|null), r?:Closure():(array<mixed, mixed>|null), s:array<mixed, mixed>}|null';
+
+        $this->assertSame(
+            $very_large_type,
+            (string) Type::parseString($very_large_type)
+        );
+    }
+
     /**
      * @dataProvider providerTestValidCallMapType
      *