diff --git a/dictionaries/CallMap.php b/dictionaries/CallMap.php
index e725c4682..ed850ac64 100644
--- a/dictionaries/CallMap.php
+++ b/dictionaries/CallMap.php
@@ -87,7 +87,7 @@ namespace Phan\Language\Internal;
 return [
 '_' => ['string', 'message'=>'string'],
 '__halt_compiler' => ['void'],
-'abs' => ['int', 'num'=>'int'],
+'abs' => ['0|positive-int', 'num'=>'int'],
 'abs\'1' => ['float', 'num'=>'float'],
 'abs\'2' => ['numeric', 'num'=>'numeric'],
 'accelerator_get_configuration' => ['array'],
diff --git a/dictionaries/CallMap_historical.php b/dictionaries/CallMap_historical.php
index 18f614ade..8495d7530 100644
--- a/dictionaries/CallMap_historical.php
+++ b/dictionaries/CallMap_historical.php
@@ -9427,7 +9427,7 @@ return [
     'ZookeeperConfig::set' => ['void', 'members'=>'string', 'version='=>'int', 'stat='=>'array'],
     '_' => ['string', 'message'=>'string'],
     '__halt_compiler' => ['void'],
-    'abs' => ['int', 'num'=>'int'],
+    'abs' => ['0|positive-int', 'num'=>'int'],
     'abs\'1' => ['float', 'num'=>'float'],
     'abs\'2' => ['numeric', 'num'=>'numeric'],
     'accelerator_get_configuration' => ['array'],