diff --git a/ts/input/tex/bbox/BboxConfiguration.ts b/ts/input/tex/bbox/BboxConfiguration.ts
index 37838302e..02c7785b6 100644
--- a/ts/input/tex/bbox/BboxConfiguration.ts
+++ b/ts/input/tex/bbox/BboxConfiguration.ts
@@ -64,7 +64,7 @@ const BboxMethods: { [key: string]: ParseMethod } = {
             height: '+' + pad,
             depth: '+' + pad,
             lspace: pad,
-            width: '+' + 2 * parseInt(match[1], 10) + match[3],
+            width: '+' + 2 * parseFloat(match[1]) + match[3],
           };
         }
       } else if (part.match(/^([a-z0-9]+|#[0-9a-f]{6}|#[0-9a-f]{3})$/i)) {