--- a/src/eric7/Plugins/CheckerPlugins/SyntaxChecker/SyntaxCheckerDialog.py	Fri Nov 11 17:14:21 2022 +0100
+++ b/src/eric7/Plugins/CheckerPlugins/SyntaxChecker/SyntaxCheckerDialog.py	Fri Nov 11 17:49:06 2022 +0100
@@ -255,7 +255,7 @@
         self.__lastFileItem = None
 
         if codestring:
-            self.source = codestring
+            self.source = Utilities.normalizeCode(codestring)
         else:
             try:
                 self.source = Utilities.readEncodedFile(self.filename)[0]