diff --git a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/Makefile b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/Makefile
index 1e889cbc4a..a89e3891cd 100644
--- a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/Makefile
+++ b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/Makefile
@@ -44,13 +44,10 @@ DEPDIR = $(BUILDDIR)/dep
 
 DEF += -DNDEBUG -DCHIP_LPC11CXX -DCORE_M0 -DTHUMB_NO_INTERWORKING -U__STRICT_ANSI__
 
-FLAGS = -mthumb -mcpu=cortex-m0 -mno-thumb-interwork
+FLAGS = -mthumb -mcpu=cortex-m0 -mno-thumb-interwork -flto -Os -g3 -Wall -Wextra -Werror -ffunction-sections \
+        -fdata-sections -fno-common -fno-exceptions -fno-unwind-tables -fno-stack-protector -fomit-frame-pointer
 
-C_CPP_FLAGS = $(FLAGS) -Os -g3 -Wall -Wextra -Werror -ffunction-sections -fdata-sections \
-              -fno-common -fno-exceptions -fno-unwind-tables -fno-stack-protector -fomit-frame-pointer
-
-# Dependencies
-C_CPP_FLAGS += -MD -MP -MF $(DEPDIR)/$(@F).d
+C_CPP_FLAGS = $(FLAGS) -MD -MP -MF $(DEPDIR)/$(@F).d
 
 CFLAGS = $(C_CPP_FLAGS) -std=c99
 
diff --git a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
index 361e2f18b9..49f478619f 100644
--- a/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
+++ b/libuavcan_drivers/lpc11c24/test_olimex_lpc_p11c24/src/sys/crt0.c
@@ -135,8 +135,9 @@ extern void __stack_end(void);
 
 /**
  * Vector table for LPC11Cxx
+ * Must be explicitly defined 'used', otherwise LTO optimizer will discard it.
  */
-__attribute__ ((section("vectors")))
+__attribute__ ((used, section("vectors")))
 void (* const VectorTable[64])(void) =
 {
     __stack_end,                            // The initial stack pointer