diff --git a/ports/stm32/boards/PYBD_SF2/manifest.py b/ports/stm32/boards/PYBD_SF2/manifest.py
new file mode 100644
index 000000000..48cc2ce93
--- /dev/null
+++ b/ports/stm32/boards/PYBD_SF2/manifest.py
@@ -0,0 +1,2 @@
+include('$(PORT_DIR)/boards/manifest.py')
+include('$(MPY_DIR)/extmod/webrepl/manifest.py')
diff --git a/ports/stm32/boards/PYBD_SF2/mpconfigboard.mk b/ports/stm32/boards/PYBD_SF2/mpconfigboard.mk
index 9c0121f31..69407345b 100644
--- a/ports/stm32/boards/PYBD_SF2/mpconfigboard.mk
+++ b/ports/stm32/boards/PYBD_SF2/mpconfigboard.mk
@@ -17,3 +17,6 @@ MICROPY_PY_NETWORK_CYW43 = 1
 MICROPY_PY_USSL = 1
 MICROPY_SSL_MBEDTLS = 1
 MICROPY_VFS_LFS2 = 1
+
+# PYBD-specific frozen modules
+FROZEN_MANIFEST = $(BOARD_DIR)/manifest.py
diff --git a/ports/stm32/boards/PYBD_SF3/mpconfigboard.mk b/ports/stm32/boards/PYBD_SF3/mpconfigboard.mk
index 7bef5651d..f6d6e955b 100644
--- a/ports/stm32/boards/PYBD_SF3/mpconfigboard.mk
+++ b/ports/stm32/boards/PYBD_SF3/mpconfigboard.mk
@@ -16,3 +16,6 @@ MICROPY_PY_LWIP = 1
 MICROPY_PY_NETWORK_CYW43 = 1
 MICROPY_PY_USSL = 1
 MICROPY_SSL_MBEDTLS = 1
+
+# PYBD-specific frozen modules
+FROZEN_MANIFEST = boards/PYBD_SF2/manifest.py
diff --git a/ports/stm32/boards/PYBD_SF6/mpconfigboard.mk b/ports/stm32/boards/PYBD_SF6/mpconfigboard.mk
index f85d9c997..e33d62d86 100644
--- a/ports/stm32/boards/PYBD_SF6/mpconfigboard.mk
+++ b/ports/stm32/boards/PYBD_SF6/mpconfigboard.mk
@@ -13,3 +13,6 @@ MICROPY_PY_LWIP = 1
 MICROPY_PY_NETWORK_CYW43 = 1
 MICROPY_PY_USSL = 1
 MICROPY_SSL_MBEDTLS = 1
+
+# PYBD-specific frozen modules
+FROZEN_MANIFEST = boards/PYBD_SF2/manifest.py