diff --git a/TheWitcher/witchersheet.html b/TheWitcher/witchersheet.html
index 706ccf3ae6..c7499a9f5c 100644
--- a/TheWitcher/witchersheet.html
+++ b/TheWitcher/witchersheet.html
@@ -3982,7 +3982,7 @@ function repeatingSum (destination, section, fieldsum, fieldmult, totalmult){
 }
 
 on('clicked:roll', (event) => {
-  	startRoll(event.htmlAttributes.value + "{{fumble=[[1d10!+1]]}} {{fumble2=[[1d10!+1]]}}", (results) => {
+  	startRoll(event.htmlAttributes.value + "{{fumble=[[1d10!]]}} {{fumble2=[[1d10!]]}}", (results) => {
   	    	var rollComputed = results.results.roll.result;
   	    	var roll2Computed = 0;
 
@@ -3990,7 +3990,7 @@ on('clicked:roll', (event) => {
 
 		if(results.results.roll.dice[0] == 1) // We check if the first die is a fumble.
 		{
-			rollComputed = results.results.roll.result - results.results.fumble.result;
+			rollComputed = results.results.roll.result - results.results.fumble.result-1;
 		}
 
 		if(results.results.roll2 != null) {
@@ -3999,7 +3999,7 @@ on('clicked:roll', (event) => {
 
 			if( results.results.roll2.dice[0] == 1) // We check if the first die is a fumble.
 			{
-				roll2Computed = results.results.roll2.result - results.results.fumble2.result;
+				roll2Computed = results.results.roll2.result - results.results.fumble2.result-1;
 			}
 		}
 
@@ -4022,12 +4022,12 @@ on('clicked:repeating_finearts:roll clicked:repeating_performance:roll clicked:r
 
 	let rollPart = event.htmlAttributes.value.replaceAll('prefix-', `${prefix}`);
 
-  	startRoll(rollPart + "{{fumble=[[1d10!+1]]}}", (results) => {
+  	startRoll(rollPart + "{{fumble=[[1d10!]]}}", (results) => {
         var rollComputed = results.results.roll.result;
 
         if(results.results.roll.dice[0] == 1) // We check if the first die is a fumble.
         {
-            rollComputed = results.results.roll.result - results.results.fumble.result;
+            rollComputed = results.results.roll.result - results.results.fumble.result-1;
         }
 
         finishRoll(