diff --git a/openair-cn/SGW-LITE/sgw_lite_ie_defs.h b/openair-cn/SGW-LITE/sgw_lite_ie_defs.h
index 18dd896c6c..70a2112520 100644
--- a/openair-cn/SGW-LITE/sgw_lite_ie_defs.h
+++ b/openair-cn/SGW-LITE/sgw_lite_ie_defs.h
@@ -120,7 +120,7 @@ typedef struct {
         (imsi)->digit[14]
 
 typedef struct {
-    uint8_t digit[IMSI_DIGITS_MAX];
+    uint8_t digit[IMSI_DIGITS_MAX+1]; // +1 for '\0` macro sprintf changed in snprintf
     uint8_t length;
 } Imsi_t;