diff --git a/src/Task/Assets/Minify.php b/src/Task/Assets/Minify.php
index 4baec4766..399ff14e2 100644
--- a/src/Task/Assets/Minify.php
+++ b/src/Task/Assets/Minify.php
@@ -176,6 +176,7 @@ protected function getMinifiedText()
     public function singleLine($singleLine)
     {
         $this->squeezeOptions['singleLine'] = (bool)$singleLine;
+        return $this;
     }
 
     /**
@@ -186,6 +187,7 @@ public function singleLine($singleLine)
     public function keepImportantComments($keepImportantComments)
     {
         $this->squeezeOptions['keepImportantComments'] = (bool)$keepImportantComments;
+        return $this;
     }
 
     /**
@@ -196,6 +198,7 @@ public function keepImportantComments($keepImportantComments)
     public function specialVarRx($specialVarRx)
     {
         $this->squeezeOptions['specialVarRx'] = (bool)$specialVarRx;
+        return $this;
     }
 
     /**