diff --git a/boot/bootutil/src/loader.c b/boot/bootutil/src/loader.c
index d7484398..c6ec34f5 100644
--- a/boot/bootutil/src/loader.c
+++ b/boot/bootutil/src/loader.c
@@ -954,6 +954,8 @@ boot_copy_sector(const struct flash_area *fap_src,
         }
 
         bytes_copied += chunk_sz;
+
+        MCUBOOT_WATCHDOG_FEED();
     }
 
     return 0;
diff --git a/boot/mynewt/mcuboot_config/include/mcuboot_config/mcuboot_config.h b/boot/mynewt/mcuboot_config/include/mcuboot_config/mcuboot_config.h
index b539e48f..f04eebc6 100644
--- a/boot/mynewt/mcuboot_config/include/mcuboot_config/mcuboot_config.h
+++ b/boot/mynewt/mcuboot_config/include/mcuboot_config/mcuboot_config.h
@@ -73,4 +73,14 @@
 
 #define MCUBOOT_MAX_IMG_SECTORS       MYNEWT_VAL(BOOTUTIL_MAX_IMG_SECTORS)
 
+#if MYNEWT_VAL(WATCHDOG_INTERVAL)
+#include <hal/hal_watchdog.h>
+#define MCUBOOT_WATCHDOG_FEED()    \
+    do {                           \
+        hal_watchdog_tickle();     \
+    } while (0)
+#else
+#define MCUBOOT_WATCHDOG_FEED()    do {} while (0)
+#endif
+
 #endif /* __MCUBOOT_CONFIG_H__ */
diff --git a/boot/zephyr/include/mcuboot_config/mcuboot_config.h b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
index 4365ed2d..d79d5563 100644
--- a/boot/zephyr/include/mcuboot_config/mcuboot_config.h
+++ b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
@@ -78,4 +78,9 @@
 
 #endif /* !__BOOTSIM__ */
 
+#define MCUBOOT_WATCHDOG_FEED()         \
+    do {                                \
+        /* TODO: to be implemented */   \
+    } while (0)
+
 #endif /* __MCUBOOT_CONFIG_H__ */
diff --git a/samples/mcuboot_config/mcuboot_config.template.h b/samples/mcuboot_config/mcuboot_config.template.h
index d29f4f6f..14ad2187 100644
--- a/samples/mcuboot_config/mcuboot_config.template.h
+++ b/samples/mcuboot_config/mcuboot_config.template.h
@@ -116,4 +116,17 @@
  * "assert" is used. */
 /* #define MCUBOOT_HAVE_ASSERT_H */
 
+/*
+ * Watchdog feeding
+ */
+
+/* This macro might be implemented if the OS / HW watchdog is enabled while
+ * doing a swap upgrade and the time it takes for a swapping is long enough
+ * to cause an unwanted reset. If implementing this, the OS main.c must also
+ * enable the watchdog (if required)!
+ *
+ * #define MCUBOOT_WATCHDOG_FEED()
+ *    do { do watchdog feeding here! } while (0)
+ */
+
 #endif /* __MCUBOOT_CONFIG_H__ */