diff --git a/kern/common-errors.go b/kern/common-errors.go
index 4859f04..449a262 100644
--- a/kern/common-errors.go
+++ b/kern/common-errors.go
@@ -52,7 +52,7 @@ func ErrFuncDivisionByZero(funcName string) error {
 // }
 
 func ErrInvalidParameterValue(funcName, paramName string, paramValue any) error {
-	return fmt.Errorf("%s(): invalid value %s (%#v) for parameter %q", funcName, TypeName(paramValue), paramValue, paramName)
+	return fmt.Errorf("%s(): invalid value %s (%s) for parameter %q", funcName, paramValue, TypeName(paramValue), paramName)
 }
 
 func undefArticle(s string) (article string) {