diff --git a/c/src/lib/libbsp/arm/lpc176x/make/custom/lpc1768_mbed.cfg b/c/src/lib/libbsp/arm/lpc176x/make/custom/lpc1768_mbed.cfg
index 4cf24c8797..a5ed9c6799 100644
--- a/c/src/lib/libbsp/arm/lpc176x/make/custom/lpc1768_mbed.cfg
+++ b/c/src/lib/libbsp/arm/lpc176x/make/custom/lpc1768_mbed.cfg
@@ -8,7 +8,7 @@ RTEMS_CPU = arm
 
 CPU_CFLAGS = -march=armv7-m -mthumb
 
-CFLAGS_OPTIMIZE_V = -O2 -ggdb3 -DNDEBUG
+CFLAGS_OPTIMIZE_V = -O2 -ggdb3
 BINEXT?=.bin
 # This defines the operations performed on the linked executable.
 # is currently required.