diff --git a/dictionaries/CallMap.php b/dictionaries/CallMap.php
index 61e0a07c5ff..f125d82b55b 100644
--- a/dictionaries/CallMap.php
+++ b/dictionaries/CallMap.php
@@ -6571,8 +6571,8 @@
 'Iterator::next' => ['void'],
 'Iterator::rewind' => ['void'],
 'Iterator::valid' => ['bool'],
-'iterator_apply' => ['int', 'iterator'=>'Traversable', 'callback'=>'callable(mixed):bool', 'args='=>'array'],
-'iterator_count' => ['int', 'iterator'=>'Traversable'],
+'iterator_apply' => ['0|positive-int', 'iterator'=>'Traversable', 'callback'=>'callable(mixed):bool', 'args='=>'array'],
+'iterator_count' => ['0|positive-int', 'iterator'=>'Traversable'],
 'iterator_to_array' => ['array', 'iterator'=>'Traversable', 'preserve_keys='=>'bool'],
 'IteratorAggregate::getIterator' => ['Traversable'],
 'IteratorIterator::__construct' => ['void', 'it'=>'Traversable'],
diff --git a/dictionaries/CallMap_historical.php b/dictionaries/CallMap_historical.php
index 090c0ecd6fc..ae4ada068a8 100644
--- a/dictionaries/CallMap_historical.php
+++ b/dictionaries/CallMap_historical.php
@@ -12368,8 +12368,8 @@
     'is_writable' => ['bool', 'filename'=>'string'],
     'is_writeable' => ['bool', 'filename'=>'string'],
     'isset' => ['bool', 'value'=>'mixed', '...rest='=>'mixed'],
-    'iterator_apply' => ['int', 'iterator'=>'Traversable', 'callback'=>'callable(mixed):bool', 'args='=>'array'],
-    'iterator_count' => ['int', 'iterator'=>'Traversable'],
+    'iterator_apply' => ['0|positive-int', 'iterator'=>'Traversable', 'callback'=>'callable(mixed):bool', 'args='=>'array'],
+    'iterator_count' => ['0|positive-int', 'iterator'=>'Traversable'],
     'iterator_to_array' => ['array', 'iterator'=>'Traversable', 'preserve_keys='=>'bool'],
     'java_last_exception_clear' => ['void'],
     'java_last_exception_get' => ['object'],