diff --git a/Lib/scilab/sciexception.swg b/Lib/scilab/sciexception.swg
index a5eb4c00f..1d653b314 100644
--- a/Lib/scilab/sciexception.swg
+++ b/Lib/scilab/sciexception.swg
@@ -43,7 +43,7 @@
 }
 
 %typemap(throws, noblock=1) char, char& {
-  char obj[1];
+  char obj[2];
   sprintf(obj, "%c", (char)$1);
   SWIG_Scilab_Raise_Ex(obj, "$type", $descriptor);
 }