diff --git a/Lib/tcl/std_vector.i b/Lib/tcl/std_vector.i
index fa8f804a6..a068d70b0 100644
--- a/Lib/tcl/std_vector.i
+++ b/Lib/tcl/std_vector.i
@@ -232,8 +232,8 @@ namespace std {
         }
       
       public:
-        vector();
-        vector(unsigned int size, const T& value=T());
+        vector(unsigned int size = 0);
+        vector(unsigned int size, const T& value);
         vector(const vector<T> &);
 
         unsigned int size() const;
@@ -385,8 +385,8 @@ namespace std {
         }
         
       public:
-        vector();
-        vector(unsigned int size, const T& value=T());
+        vector(unsigned int size = 0);
+        vector(unsigned int size, const T& value);
         vector(const vector<T> &);
 
         unsigned int size() const;