diff --git a/includes/admin/post-types/meta-boxes/class-sp-meta-box-equation.php b/includes/admin/post-types/meta-boxes/class-sp-meta-box-equation.php
index 4d36ffb0..cd9bf29a 100644
--- a/includes/admin/post-types/meta-boxes/class-sp-meta-box-equation.php
+++ b/includes/admin/post-types/meta-boxes/class-sp-meta-box-equation.php
@@ -93,6 +93,7 @@ class SP_Meta_Box_Equation {
 			<div class="sp-equation">
 				<span class="sp-equation-variable"><?php echo $title; ?> = </span>
 				<span class="sp-equation-formula"><?php
+					$equation = trim( $equation );
 					if ( $equation !== '' ):
 						$equation = explode( ' ', $equation );
 						foreach ( $equation as $part ):