diff --git a/js/gcodeprocessing.js b/js/gcodeprocessing.js
index 35a8669..15d550d 100644
--- a/js/gcodeprocessing.js
+++ b/js/gcodeprocessing.js
@@ -234,17 +234,17 @@ function processRetraction(){
 
     if(centre == true){
         var retractionArray = retraction.split(/\n/g);
-        var regexp = /X\d+/;
+        var regexp = /X[0-9\.]+/;
         retractionArray.forEach(function(index, item){
             if(retractionArray[item].search(/X/) > -1){
-                var value = parseInt(retractionArray[item].match(regexp)[0].substring(1)) - 50;
+                var value = parseFloat(retractionArray[item].match(regexp)[0].substring(1)) - 50;
                 retractionArray[item] = retractionArray[item].replace(regexp, "X"+String(value));
             }
         });
-        var regexp = /Y\d+/;
+        var regexp = /Y[0-9\.]+/;
         retractionArray.forEach(function(index, item){
             if(retractionArray[item].search(/Y/) > -1){
-                var value = parseInt(retractionArray[item].match(regexp)[0].substring(1)) - 50;
+                var value = parseFloat(retractionArray[item].match(regexp)[0].substring(1)) - 50;
                 retractionArray[item] = retractionArray[item].replace(regexp, "Y"+String(value))
             }
         });
@@ -537,4 +537,4 @@ function processAcceleration(){
         acceleration = acceleration.replace(/j6/g, "M205 J"+f4);
     }
     downloadFile('acceleration.gcode', acceleration);
-}
\ No newline at end of file
+}