diff --git a/formula/SheetFormel_Wetsuit.s b/formula/SheetFormel_Wetsuit.s
index dfc8843..8e2a7ea 100644
--- a/formula/SheetFormel_Wetsuit.s
+++ b/formula/SheetFormel_Wetsuit.s
@@ -1,8 +1,8 @@
 =IF(weight<>"";IFNA(IFS(
-	And(age<=14;weight>=18;weight<=22);"6/8";
-	And(age<=14;weight>=23;weight<=34);"8/10";
-	And(age<=14;weight>=35;weight<=40);"10/12";
-	And(age<=14;weight>=41;weight<=55);"12/14";
+	And(age<>"";age<=14;weight>=18;weight<=22);"6/8";
+	And(age<>"";age<=14;weight>=23;weight<=34);"8/10";
+	And(age<>"";age<=14;weight>=35;weight<=40);"10/12";
+	And(age<>"";age<=14;weight>=41;weight<=55);"12/14";
 	And(gender="m";weight>=40;weight<=60);"XS/S";
 	And(gender="m";weight>=61;weight<=70);"S/M";
 	And(gender="m";weight>=71;weight<=80);"M/L";