1 files changed, 3 insertions, 3 deletions
diff --git a/include/Exceptions.h b/include/Exceptions.h
index d52d245..52f51c4 100644
--- a/include/Exceptions.h
+++ b/include/Exceptions.h
@@ -89,7 +89,7 @@ class Base {
 class GeneralException : public Base {
   public:
      //! The constructor has to provide a string describing the exception.
-      GeneralException(String);
+      GeneralException(const String &);
       GeneralException(const GeneralException &);
       ~GeneralException();
     //! This should only be used by the exception manager in order to display what went wrong.
@@ -129,14 +129,14 @@ enum op_t {
 
 class IOGeneral : public GeneralException {
   public:
-      IOGeneral(String);
+      IOGeneral(const String &);
   protected:
       IOGeneral();
 };
 
 class IOException : public IOGeneral {
   public:
-      IOException(String, op_t, ssize_t);
+      IOException(const String &, op_t, ssize_t);
 };
 
 class IOAgain : public IOGeneral {