diff --git a/boards/default/micropython_nrf51822_microbit/config.json b/boards/default/micropython_nrf51822_microbit/config.json
index 5f45a726..66070d04 100644
--- a/boards/default/micropython_nrf51822_microbit/config.json
+++ b/boards/default/micropython_nrf51822_microbit/config.json
@@ -55,10 +55,10 @@
         "com": "usb",
         "burn": {
             "micropython:nrf51822:v1": {
-                "filePath": "./build/microbit-micropython-v1-lib.hex"
+                "filePath": "./build/microbit-micropython-v1.hex"
             },
             "micropython:nrf51822:v2": {
-                "filePath": "./build/microbit-micropython-v2-lib.hex"
+                "filePath": "./build/microbit-micropython-v2.hex"
             }
         }
     }
diff --git a/boards/default/micropython_nrf51822_mithoncc/config.json b/boards/default/micropython_nrf51822_mithoncc/config.json
index d0889dbb..8ea112be 100644
--- a/boards/default/micropython_nrf51822_mithoncc/config.json
+++ b/boards/default/micropython_nrf51822_mithoncc/config.json
@@ -48,7 +48,7 @@
     "web": {
         "com": "usb",
         "burn": {
-            "filePath": "./build/microbit-micropython-v1-lib.hex"
+            "filePath": "./build/microbit-micropython-v1.hex"
         }
     }
 }
diff --git a/boards/default_src/micropython_nrf51822_microbit/origin/config.json b/boards/default_src/micropython_nrf51822_microbit/origin/config.json
index 5f45a726..66070d04 100644
--- a/boards/default_src/micropython_nrf51822_microbit/origin/config.json
+++ b/boards/default_src/micropython_nrf51822_microbit/origin/config.json
@@ -55,10 +55,10 @@
         "com": "usb",
         "burn": {
             "micropython:nrf51822:v1": {
-                "filePath": "./build/microbit-micropython-v1-lib.hex"
+                "filePath": "./build/microbit-micropython-v1.hex"
             },
             "micropython:nrf51822:v2": {
-                "filePath": "./build/microbit-micropython-v2-lib.hex"
+                "filePath": "./build/microbit-micropython-v2.hex"
             }
         }
     }
diff --git a/boards/default_src/micropython_nrf51822_mithoncc/origin/config.json b/boards/default_src/micropython_nrf51822_mithoncc/origin/config.json
index d0889dbb..8ea112be 100644
--- a/boards/default_src/micropython_nrf51822_mithoncc/origin/config.json
+++ b/boards/default_src/micropython_nrf51822_mithoncc/origin/config.json
@@ -48,7 +48,7 @@
     "web": {
         "com": "usb",
         "burn": {
-            "filePath": "./build/microbit-micropython-v1-lib.hex"
+            "filePath": "./build/microbit-micropython-v1.hex"
         }
     }
 }