diff --git a/samples/net/sockets/big_http_download/src/big_http_download.c b/samples/net/sockets/big_http_download/src/big_http_download.c
index 4c3176453b8..480aaaee4b9 100644
--- a/samples/net/sockets/big_http_download/src/big_http_download.c
+++ b/samples/net/sockets/big_http_download/src/big_http_download.c
@@ -29,7 +29,7 @@
 #include "ca_certificate.h"
 #endif
 
-#define sleep(x) k_sleep(x * 1000)
+#define sleep(x) k_sleep(K_MSEC((x) * MSEC_PER_SEC))
 
 #endif