diff --git a/README.md b/README.md
index 31bf062..dca220d 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,10 @@
 
 # What's new in Intouch-Language
 
+### V1.2.1
+
+- bugfix trailing whitespace before ``-``
+
 ### V1.2.0
 
 - Add folding between ``{region xxxx}`` and  ``{endregion xxxx}``
diff --git a/out/formats.js b/out/formats.js
index 5d78c74..8fe49de 100644
--- a/out/formats.js
+++ b/out/formats.js
@@ -328,17 +328,19 @@ function forFormat(text, config) {
                         for (j in const_2.SINGLE_OPERATORS) {
                             if (text[i] === const_2.SINGLE_OPERATORS[j]) {
                                 if (const_2.SINGLE_OPERATORS[j] === "-") {
-                                    if (text[i + 1] === " " || text[i + 1] === const_1.TAB) {
-                                        //23.01.2022 check '-' as single Operator, because it can be used in variables
+                                    //23.01.2022 check '-' as single Operator, because it can be used in variables
+                                    let tstSwp = text[i + 1] == " " && text[i - 1] != " "; // 2022.01.25 Bugfix
+                                    let tstNmb = text[i + 1] == " " && text[i - 1] != " " && isNaN(+text[i + 1]); // 2022.01.25 Bugfix
+                                    if (tstSwp) {
                                         buf += " ";
                                     }
                                 }
-                                else if (text[i - 1] !== " ") {
+                                else if (text[i - 1] != " ") {
                                     //check for space before operator
                                     buf += " ";
                                 }
                                 buf += text[i];
-                                if (text[i + 1] !== " ") {
+                                if (text[i + 1] != " ") {
                                     //check for space after operator
                                     // let debug1 = SINGLE_OPERATORS[j];
                                     // if (SINGLE_OPERATORS[j] === '+' || SINGLE_OPERATORS[j] === '-') {
diff --git a/package.json b/package.json
index 4483a58..c4a24e5 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "intouch-language",
 	"displayName": "Intouch-Language and Formatter for VSCode. (c)2021 vitalyruhl",
 	"description": "Intouch-Language syntax highlighting, formatter and code snippets for VSCode",
-	"version": "1.2.0",
+	"version": "1.2.1",
 	"icon": "images/logo.png",
 	"publisher": "Vitaly-ruhl",
 	"engines": {
diff --git a/src/formats.ts b/src/formats.ts
index 4848240..2ef4561 100644
--- a/src/formats.ts
+++ b/src/formats.ts
@@ -389,18 +389,20 @@ export function forFormat(text: string, config: any): string {
             for (j in SINGLE_OPERATORS) {
               if (text[i] === SINGLE_OPERATORS[j]) {
                 if (SINGLE_OPERATORS[j] === "-") {
-                  if (text[i + 1] === " " || text[i + 1] === TAB) {
-                    //23.01.2022 check '-' as single Operator, because it can be used in variables
+                  //23.01.2022 check '-' as single Operator, because it can be used in variables
+                  let tstSwp = text[i + 1] == " " && text[i - 1] != " "; // 2022.01.25 Bugfix
+                  let tstNmb = text[i + 1] == " " && text[i - 1] != " " && isNaN(+text[i + 1]); // 2022.01.25 Bugfix
+                  if (tstSwp) {
                     buf += " ";
                   }
-                } else if (text[i - 1] !== " ") {
+                } else if (text[i - 1] != " ") {
                   //check for space before operator
                   buf += " ";
                 }
 
                 buf += text[i];
 
-                if (text[i + 1] !== " ") {
+                if (text[i + 1] != " ") {
                   //check for space after operator
                   // let debug1 = SINGLE_OPERATORS[j];
                   // if (SINGLE_OPERATORS[j] === '+' || SINGLE_OPERATORS[j] === '-') {
diff --git a/test/test.vbi b/test/test.vbi
index 645ff4c..5ba0e4a 100644
--- a/test/test.vbi
+++ b/test/test.vbi
@@ -21,7 +21,7 @@ ITXStartAppInDirectory ( SYS_ToolsPath + "string ( with ) whitespaces test.", SY
 
 {region check single operators}	
 SYS_Anlage = -1;{fixed 2021.10.29: no space on -/+ before Number!}  
-c=a+b +d- e+ f -g;{folowing comment not formated! -> c=a+b +d - e+ f;}
+c=a+b +d- e+ f -g - x;{folowing comment not formated! -> c=a+b +d - e+ f;}
 {# New Region trenner}
 new12-issue-dashed-variable-123 = "this variable shal not be formated"
 {endregion check single operators}