diff --git a/CHANGELOG.md b/CHANGELOG.md
index 352e3c7..33354b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,9 +11,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Laravel 10 support
 - PHP 8.2 support
 
+### Improved
+- Optional geometry type param for ST_Buffer enabling easier control about metric buffering 
+
 ### Fixed
 - Typing bug when trying to use a Closure as Geoparam
 
+
+
 ## [1.0.2](https://github.com/clickbar/laravel-magellan/tree/1.0.2) - 2023-01-05
 
 ### Fixed
diff --git a/src/Database/PostgisFunctions/MagellanGeometryProcessingFunctions.php b/src/Database/PostgisFunctions/MagellanGeometryProcessingFunctions.php
index 70732b3..f7523a6 100644
--- a/src/Database/PostgisFunctions/MagellanGeometryProcessingFunctions.php
+++ b/src/Database/PostgisFunctions/MagellanGeometryProcessingFunctions.php
@@ -33,7 +33,7 @@ trait MagellanGeometryProcessingFunctions
      *
      * @see https://postgis.net/docs/ST_Buffer.html
      */
-    public static function buffer($geometry, float|Expression|\Closure $radius, ?int $numSegQuarterCircle = null, ?int $styleQuadSegs = null, ?EndCap $styleEndCap = null, ?Join $styleJoin = null, float|Expression|\Closure|null $styleMitreLevel = null, ?Side $styleSide = null): MagellanGeometryExpression
+    public static function buffer($geometry, float|Expression|\Closure $radius, ?int $numSegQuarterCircle = null, ?int $styleQuadSegs = null, ?EndCap $styleEndCap = null, ?Join $styleJoin = null, float|Expression|\Closure|null $styleMitreLevel = null, ?Side $styleSide = null, ?GeometryType $geometryType = null): MagellanGeometryExpression
     {
         $arguments = [
             GeoParam::wrap($geometry),
@@ -65,7 +65,7 @@ public static function buffer($geometry, float|Expression|\Closure $radius, ?int
             $arguments[] = $numSegQuarterCircle;
         }
 
-        return MagellanBaseExpression::geometry('ST_Buffer', $arguments, null);
+        return MagellanBaseExpression::geometry('ST_Buffer', $arguments, $geometryType);
     }
 
     /**