diff --git a/openair-cn/NAS/EURECOM-NAS/src/ies/AuthenticationParameterAutn.c b/openair-cn/NAS/EURECOM-NAS/src/ies/AuthenticationParameterAutn.c
index e5f7032ab5..024498dd8c 100644
--- a/openair-cn/NAS/EURECOM-NAS/src/ies/AuthenticationParameterAutn.c
+++ b/openair-cn/NAS/EURECOM-NAS/src/ies/AuthenticationParameterAutn.c
@@ -26,7 +26,7 @@
   Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
 
  *******************************************************************************/
-s#include <stdio.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>