diff --git a/lib_jtag_core/src/script/script.c b/lib_jtag_core/src/script/script.c
index c8e4d3f..aa7a36d 100644
--- a/lib_jtag_core/src/script/script.c
+++ b/lib_jtag_core/src/script/script.c
@@ -1232,6 +1232,7 @@ char * arrayresize(char * array, int size, unsigned char c)
 		array = malloc(DEFAULT_BUFLEN);
 		if(array)
 		{
+			size = DEFAULT_BUFLEN / 2;
 			memset(array,0,DEFAULT_BUFLEN);
 		}
 
@@ -1258,7 +1259,7 @@ char * arrayresize(char * array, int size, unsigned char c)
 		}
 		else
 		{
-			ptr[ (size * 2) ] = 0;
+			ptr[ (size * 2) - 1 ] = 0;
 		}
 	}