diff --git a/packages/NodeTypeResolver/src/StaticTypeMapper.php b/packages/NodeTypeResolver/src/StaticTypeMapper.php
index d96dcec44fb3..e6b6deb58f42 100644
--- a/packages/NodeTypeResolver/src/StaticTypeMapper.php
+++ b/packages/NodeTypeResolver/src/StaticTypeMapper.php
@@ -116,6 +116,10 @@ public function mapPHPStanTypeToPHPStanPhpDocTypeNode(Type $phpStanType): TypeNo
             return new IdentifierTypeNode('string');
         }
 
+        if ($phpStanType instanceof BooleanType) {
+            return new IdentifierTypeNode('bool');
+        }
+
         if ($phpStanType instanceof FloatType) {
             return new IdentifierTypeNode('float');
         }