diff --git a/c/src/lib/libbsp/epiphany/epiphany_sim/make/custom/epiphany_sim.cfg b/c/src/lib/libbsp/epiphany/epiphany_sim/make/custom/epiphany_sim.cfg
index 9eea2a04c7..1fef6085d1 100644
--- a/c/src/lib/libbsp/epiphany/epiphany_sim/make/custom/epiphany_sim.cfg
+++ b/c/src/lib/libbsp/epiphany/epiphany_sim/make/custom/epiphany_sim.cfg
@@ -5,3 +5,6 @@ RTEMS_CPU = epiphany
 CPU_CFLAGS =
 
 CFLAGS_OPTIMIZE_V ?= -O0 -g
+CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
+
+LDFLAGS = -Wl,--gc-sections