diff --git a/Planetovka.sm b/Planetovka.sm
index 45a1471..110ad81 100644
--- a/Planetovka.sm
+++ b/Planetovka.sm
@@ -4,7 +4,7 @@
   <settings>
     <identity>
       <id>9d5361ef-bd1e-4200-a183-1dc652b53c7f</id>
-      <revision>386</revision>
+      <revision>387</revision>
     </identity>
     <calculation>
       <precision>4</precision>
@@ -9233,7 +9233,7 @@
     <math>
       <input>
         <e type="operand">d.e_4</e>
-        <e type="operand">d.B</e>
+        <e type="operand">D.h</e>
         <e type="operand" style="unit">mm</e>
         <e type="operator" args="2">/</e>
         <e type="bracket">(</e>