diff --git a/config/arch/arm/cpu/arm7tdmi/cpu.mk b/config/arch/arm/cpu/arm7tdmi/cpu.mk
index d50dd060..5e3faf31 100644
--- a/config/arch/arm/cpu/arm7tdmi/cpu.mk
+++ b/config/arch/arm/cpu/arm7tdmi/cpu.mk
@@ -1,5 +1,5 @@
 export ATMOSPHERE_DEFINES  += -DATMOSPHERE_CPU_ARM7TDMI
-export ATMOSPHERE_SETTINGS += -march=armv4t -mtune=arm7tdmi -mthumb -mthumb-interwork
+export ATMOSPHERE_SETTINGS += -march=armv4t -mtune=arm7tdmi -mthumb -mthumb-interwork -fstrict-volatile-bitfields
 export ATMOSPHERE_CFLAGS   +=
 export ATMOSPHERE_CXXFLAGS +=
 export ATMOSPHERE_ASFLAGS  +=
\ No newline at end of file