diff --git a/ext/lib/mgmt/mcumgr/cmd/img_mgmt/port/zephyr/src/zephyr_img_mgmt.c b/ext/lib/mgmt/mcumgr/cmd/img_mgmt/port/zephyr/src/zephyr_img_mgmt.c
index 2951d4df638..a21237d29d8 100644
--- a/ext/lib/mgmt/mcumgr/cmd/img_mgmt/port/zephyr/src/zephyr_img_mgmt.c
+++ b/ext/lib/mgmt/mcumgr/cmd/img_mgmt/port/zephyr/src/zephyr_img_mgmt.c
@@ -237,7 +237,7 @@ img_mgmt_impl_write_image_data(unsigned int offset, const void *data,
 int
 img_mgmt_impl_swap_type(void)
 {
-    switch (boot_swap_type()) {
+    switch (mcuboot_swap_type()) {
     case BOOT_SWAP_TYPE_NONE:
         return IMG_MGMT_SWAP_TYPE_NONE;
     case BOOT_SWAP_TYPE_TEST:
diff --git a/include/dfu/mcuboot.h b/include/dfu/mcuboot.h
index 82db0134f07..7bc003d20c3 100644
--- a/include/dfu/mcuboot.h
+++ b/include/dfu/mcuboot.h
@@ -143,7 +143,7 @@ int boot_write_img_confirmed(void);
  * @return a BOOT_SWAP_TYPE_[...] constant on success, negative errno code on
  * fail.
  */
-int boot_swap_type(void);
+int mcuboot_swap_type(void);
 
 /**
  * @brief Marks the image in slot 1 as pending. On the next reboot, the system
diff --git a/samples/subsys/usb/dfu/README.rst b/samples/subsys/usb/dfu/README.rst
index 55e031465cd..2ee85eef0ca 100644
--- a/samples/subsys/usb/dfu/README.rst
+++ b/samples/subsys/usb/dfu/README.rst
@@ -86,7 +86,7 @@ showing this output to the console:
   [MCUBOOT] [INF] boot_status_source: Image 0: magic=unset, copy_done=0xff, image_ok=0xff
   [MCUBOOT] [INF] boot_status_source: Scratch: magic=unset, copy_done=0xe, image_ok=0xff
   [MCUBOOT] [INF] boot_status_source: Boot source: slot 0
-  [MCUBOOT] [INF] boot_swap_type: Swap type: test
+  [MCUBOOT] [INF] mcuboot_swap_type: Swap type: test
   [MCUBOOT] [INF] main: Bootloader chainload address offset: 0x20000
   [MCUBOOT] [INF] main: Jumping to the first image slot0
   ***** Booting Zephyr OS v1.11.0-830-g9df01813c4 *****
@@ -102,7 +102,7 @@ USB DFU sample, showing this output to the console:
   [MCUBOOT] [INF] boot_status_source: Image 0: magic=good, copy_done=0x1, image_ok=0xff
   [MCUBOOT] [INF] boot_status_source: Scratch: magic=unset, copy_done=0xe, image_ok=0xff
   [MCUBOOT] [INF] boot_status_source: Boot source: none
-  [MCUBOOT] [INF] boot_swap_type: Swap type: revert
+  [MCUBOOT] [INF] mcuboot_swap_type: Swap type: revert
   [MCUBOOT] [INF] main: Bootloader chainload address offset: 0x20000
   ***** Booting Zephyr OS v1.11.0-830-g9df01813c4 *****
 
diff --git a/subsys/dfu/boot/mcuboot.c b/subsys/dfu/boot/mcuboot.c
index 9a0103b050a..121b8628ecf 100644
--- a/subsys/dfu/boot/mcuboot.c
+++ b/subsys/dfu/boot/mcuboot.c
@@ -416,7 +416,7 @@ static int boot_read_swap_state(u8_t bank_id, struct boot_swap_state *state)
 	return 0;
 }
 
-int boot_swap_type(void)
+int mcuboot_swap_type(void)
 {
 	const struct boot_swap_table *table;
 	struct boot_swap_state state_slot0;