diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index eb91a231efc..5feb70a73ba 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -220,7 +220,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run:  make -C examples/stm32/nucleo-h723zg-make-baremetal-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
 #    - if: ${{ env.GO == 1 }}
-# WIP      run:  make -C examples/stm32/nucleo-h723zg-make-freertos-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+    - run:  make -C examples/stm32/nucleo-h723zg-make-freertos-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     
   test_h5:
     runs-on: ubuntu-latest
diff --git a/examples/stm32/nucleo-h723zg-make-freertos-builtin/Makefile b/examples/stm32/nucleo-h723zg-make-freertos-builtin/Makefile
index 43406eff874..f2be6504e80 100644
--- a/examples/stm32/nucleo-h723zg-make-freertos-builtin/Makefile
+++ b/examples/stm32/nucleo-h723zg-make-freertos-builtin/Makefile
@@ -1,6 +1,6 @@
 CFLAGS  = -W -Wall -Wextra -Werror -Wundef -Wshadow -Wdouble-promotion
 CFLAGS += -Wformat-truncation -fno-common -Wconversion -Wno-sign-conversion
-CFLAGS += -g3 -Os -ffunction-sections -fdata-sections
+CFLAGS += -g3 -O0 -ffunction-sections -fdata-sections
 CFLAGS += -I. -Icmsis_core/CMSIS/Core/Include -Icmsis_h7/Include
 CFLAGS += -mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-d16
 LDFLAGS ?= -Tlink.ld -nostdlib -nostartfiles --specs nano.specs -lc -lgcc -Wl,--gc-sections -Wl,-Map=$@.map