diff --git a/src/Psalm/Internal/Type/ParseTreeCreator.php b/src/Psalm/Internal/Type/ParseTreeCreator.php
index ca2eea6cdff..0ea26080433 100644
--- a/src/Psalm/Internal/Type/ParseTreeCreator.php
+++ b/src/Psalm/Internal/Type/ParseTreeCreator.php
@@ -235,6 +235,46 @@ private function createMethodParam(array $current_token, ParseTree $current_pare
         $this->current_leaf = $new_parent_leaf;
     }
 
+    /**
+     * @param  array{0: string, 1: int, 2?: string} $current_token
+     */
+    private function parseCallableParam(array $current_token, ParseTree $current_parent): void
+    {
+        $variadic = false;
+        $has_default = false;
+
+        if ($current_token[0] === '&') {
+            ++$this->t;
+            $current_token = $this->t < $this->type_token_count ? $this->type_tokens[$this->t] : null;
+        } elseif ($current_token[0] === '...') {
+            $variadic = true;
+
+            ++$this->t;
+            $current_token = $this->t < $this->type_token_count ? $this->type_tokens[$this->t] : null;
+        } elseif ($current_token[0] === '=') {
+            $has_default = true;
+
+            ++$this->t;
+            $current_token = $this->t < $this->type_token_count ? $this->type_tokens[$this->t] : null;
+        }
+
+        if (!$current_token || $current_token[0][0] !== '$') {
+            throw new TypeParseTreeException('Unexpected token after space');
+        }
+
+        $new_leaf = new CallableParamTree($current_parent);
+        $new_leaf->has_default = $has_default;
+        $new_leaf->variadic = $variadic;
+
+        if ($current_parent !== $this->current_leaf) {
+            $new_leaf->children = [$this->current_leaf];
+            array_pop($current_parent->children);
+        }
+        $current_parent->children[] = $new_leaf;
+
+        $this->current_leaf = $new_leaf;
+    }
+
     private function handleLessThan(): void
     {
         if (!$this->current_leaf instanceof FieldEllipsis) {
@@ -565,11 +605,15 @@ private function handleSpace(): void
             throw new TypeParseTreeException('Unexpected space');
         }
 
-        ++$this->t;
 
         if ($current_parent instanceof MethodTree) {
+            ++$this->t;
             $this->createMethodParam($next_token, $current_parent);
         }
+        if ($current_parent instanceof CallableTree) {
+            ++$this->t;
+            $this->parseCallableParam($next_token, $current_parent);
+        }
     }
 
     private function handleQuestionMark(): void
diff --git a/tests/TypeAnnotationTest.php b/tests/TypeAnnotationTest.php
index 459cc803489..29ee8f6581f 100644
--- a/tests/TypeAnnotationTest.php
+++ b/tests/TypeAnnotationTest.php
@@ -686,11 +686,14 @@ class Foo {
                      * @psalm-type B callable(int, int=): string
                      * @psalm-type C callable(int $a, string $b): void
                      * @psalm-type D callable(string $c): mixed
-                     * @psalm-type E callable(float...): (int|null)
-                     * @psalm-type F callable(float ...$d): (int|null)
-                     * @psalm-type G callable(array<int>): array<string>
-                     * @psalm-type H callable(array<string, int> $e): array<int, string>
-                     * @psalm-type I \Closure(int, int): string
+                     * @psalm-type E callable(string $c): mixed
+                     * @psalm-type F callable(float...): (int|null)
+                     * @psalm-type G callable(float ...$d): (int|null)
+                     * @psalm-type H callable(array<int>): array<string>
+                     * @psalm-type I callable(array<string, int> $e): array<int, string>
+                     * @psalm-type J callable(array<int> ...): string
+                     * @psalm-type K callable(array<int> ...$e): string
+                     * @psalm-type L \Closure(int, int): string
                      *
                      * @method ma(): A
                      * @method mb(): B
@@ -701,6 +704,9 @@ class Foo {
                      * @method mg(): G
                      * @method mh(): H
                      * @method mi(): I
+                     * @method mj(): J
+                     * @method mk(): K
+                     * @method ml(): L
                      */
                     class Foo {
                         public function __call(string $method, array $params) { return 1; }
@@ -716,17 +722,23 @@ public function __call(string $method, array $params) { return 1; }
                     $output_mg = $foo->mg();
                     $output_mh = $foo->mh();
                     $output_mi = $foo->mi();
+                    $output_mj = $foo->mj();
+                    $output_mk = $foo->mk();
+                    $output_ml = $foo->ml();
                 ',
                 'assertions' => [
                     '$output_ma===' => 'callable(int, int):string',
                     '$output_mb===' => 'callable(int, int=):string',
                     '$output_mc===' => 'callable(int, string):void',
                     '$output_md===' => 'callable(string):mixed',
-                    '$output_me===' => 'callable(float...):(int|null)',
+                    '$output_me===' => 'callable(string):mixed',
                     '$output_mf===' => 'callable(float...):(int|null)',
-                    '$output_mg===' => 'callable(array<array-key, int>):array<array-key, string>',
-                    '$output_mh===' => 'callable(array<string, int>):array<int, string>',
-                    '$output_mi===' => 'Closure(int, int):string',
+                    '$output_mg===' => 'callable(float...):(int|null)',
+                    '$output_mh===' => 'callable(array<array-key, int>):array<array-key, string>',
+                    '$output_mi===' => 'callable(array<string, int>):array<int, string>',
+                    '$output_mj===' => 'callable(array<array-key, int>...):string',
+                    '$output_mk===' => 'callable(array<array-key, int>...):string',
+                    '$output_ml===' => 'Closure(int, int):string',
                 ],
             ],
             'unionOfStringsContainingBraceChar' => [