diff --git a/libuavcan_drivers/stm32/test_stm32f107/Makefile b/libuavcan_drivers/stm32/test_stm32f107/Makefile
index d139ec8012..08cd232a87 100644
--- a/libuavcan_drivers/stm32/test_stm32f107/Makefile
+++ b/libuavcan_drivers/stm32/test_stm32f107/Makefile
@@ -16,9 +16,6 @@ CPPSRC = src/main.cpp src/dummy.cpp
 
 UDEFS = -DUAVCAN_STM32_CHIBIOS=1         \
         -DUAVCAN_STM32_TIMER_NUMBER=6    \
-        -DUAVCAN_MEM_POOL_BLOCK_SIZE=56  \
-        -DUAVCAN_TOSTRING=0              \
-        -DUAVCAN_EXCEPTIONS=0            \
         -DUAVCAN_TINY=1                  \
         -DUAVCAN_STM32_NUM_IFACES=2