diff --git a/src/Formfield.php b/src/Formfield.php
index 7506d7e..a508779 100644
--- a/src/Formfield.php
+++ b/src/Formfield.php
@@ -239,7 +239,7 @@ class Formfield
                 // If more than one title is set, the main label is unusable, so
                 // do not link it to the checkbox
                 // If there is no label on the checkbox, this label must be set
-                $res .= " for='" .  $this->formName . "_";
+                $res .= " for='" . $this->formName . "_";
                 $res .= htmlspecialchars($this->name, ENT_QUOTES);
                 $res .= "'";
             }
@@ -487,7 +487,7 @@ class Formfield
                 // If more than one title is set, the main label is unusable, so
                 // do not link it to the radio
                 // If there is no label on the checkbox, this label must be set
-                $res .= " for='" .  $this->formName . "_";
+                $res .= " for='" . $this->formName . "_";
                 $res .= htmlspecialchars($this->name, ENT_QUOTES);
                 $res .= "'";
             }
@@ -1045,7 +1045,7 @@ class Formfield
                 // If more than one title is set, the main label is unusable, so
                 // do not link it to the checkbox
                 // If there is no label on the checkbox, this label must be set
-                $res .= " for='" .  $this->formName . "_";
+                $res .= " for='" . $this->formName . "_";
                 $res .= htmlspecialchars($this->name, ENT_QUOTES);
                 $res .= "'";
             }
@@ -1311,7 +1311,7 @@ class Formfield
                 // If more than one title is set, the main label is unusable, so
                 // do not link it to the radio
                 // If there is no label on the checkbox, this label must be set
-                $res .= " for='" .  $this->formName . "_";
+                $res .= " for='" . $this->formName . "_";
                 $res .= htmlspecialchars($this->name, ENT_QUOTES);
                 $res .= "'";
             }
@@ -1690,7 +1690,7 @@ class Formfield
             if ($this->titlewidth > 0) {
                 $res .= " class='col-sm-$this->titlewidth col-form-label'";
             }
-            $res .= " for='" .  $this->formName . "_";
+            $res .= " for='" . $this->formName . "_";
             $res .= htmlspecialchars($this->name, ENT_QUOTES) . "'";
             if (isset($this->hidden) && $this->hidden !== false) {
                 $res .= " style='display:none'";