diff --git a/src/wp-includes/class-wp-image-editor-imagick.php b/src/wp-includes/class-wp-image-editor-imagick.php
index ee12b401d9..40e3cbb823 100644
--- a/src/wp-includes/class-wp-image-editor-imagick.php
+++ b/src/wp-includes/class-wp-image-editor-imagick.php
@@ -503,7 +503,7 @@ class WP_Image_Editor_Imagick extends WP_Image_Editor {
 			$size_data['crop'] = false;
 		}
 
-		if ( ( $this->size['width'] == $size_data['width'] ) && ( $this->size['height'] == $size_data['height'] ) ) {
+		if ( ( $this->size['width'] === $size_data['width'] ) && ( $this->size['height'] === $size_data['height'] ) ) {
 			return new WP_Error( 'image_subsize_create_error', __( 'The image already has the requested size.' ) );
 		}