--- a/Object.st	Sat Aug 31 10:16:10 2019 +0200
+++ b/Object.st	Sat Aug 31 10:16:30 2019 +0200
@@ -8083,10 +8083,13 @@
     "
 !
 
-printfPrintString:ignoredFormat
+printfPrintString:format
     "fallback to default printString
      (for compatibility with float and integer-printing)"
 
+    PrintfScanf notNil ifTrue:[
+        ^ PrintfScanf printf:format argument:self
+    ].
     ^ self printString
 !