diff --git a/src/obidmscolumn.h b/src/obidmscolumn.h
index e621e45..909f8a9 100644
--- a/src/obidmscolumn.h
+++ b/src/obidmscolumn.h
@@ -34,7 +34,7 @@
                                 	     */
 #define COLUMN_GROWTH_FACTOR (2)	 	/**< The growth factor when a column is enlarged.
                                 	   	 */
-#define MAXIMUM_LINE_COUNT (1000000)    /**< The maximum line count for the data of a column. //TODO
+#define MAXIMUM_LINE_COUNT (1000000000) /**< The maximum line count for the data of a column. //TODO
                                 	     */
 #define FORMATTED_TIME_LENGTH (1024)    /**< The length allocated for the character string containing a formatted date.
  	 	 	 	 	 	 	 	 	     */