diff --git a/src/mail/ngx_mail.h b/src/mail/ngx_mail.h
index ae1aa417a3..57a987e8d8 100644
--- a/src/mail/ngx_mail.h
+++ b/src/mail/ngx_mail.h
@@ -117,7 +117,7 @@ typedef struct {
     ngx_str_t               server_name;
 
     u_char                 *file_name;
-    ngx_int_t               line;
+    ngx_uint_t              line;
 
     ngx_resolver_t         *resolver;
     ngx_log_t              *error_log;
diff --git a/src/stream/ngx_stream.h b/src/stream/ngx_stream.h
index 807ab5b082..75b784a9ea 100644
--- a/src/stream/ngx_stream.h
+++ b/src/stream/ngx_stream.h
@@ -136,7 +136,7 @@ typedef struct {
     ngx_stream_conf_ctx_t         *ctx;
 
     u_char                        *file_name;
-    ngx_int_t                      line;
+    ngx_uint_t                     line;
 
     ngx_flag_t                     tcp_nodelay;