diff --git a/Makefile b/Makefile
index 9e388981..75c06fbe 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@ include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
 include $(RTEMS_CUSTOM)
 include $(PROJECT_ROOT)/make/leaf.cfg
 
+COMMON_FLAGS += -fno-strict-aliasing
 COMMON_FLAGS += -ffreestanding
 COMMON_FLAGS += -fno-common
 COMMON_FLAGS += -Irtemsbsd/include
diff --git a/freebsd-to-rtems.py b/freebsd-to-rtems.py
index 94a0caab..a2b06ae6 100755
--- a/freebsd-to-rtems.py
+++ b/freebsd-to-rtems.py
@@ -411,6 +411,7 @@ class ModuleManager:
 			'include $(RTEMS_CUSTOM)\n' \
 			'include $(PROJECT_ROOT)/make/leaf.cfg\n' \
 			'\n' \
+			'COMMON_FLAGS += -fno-strict-aliasing\n' \
 			'COMMON_FLAGS += -ffreestanding\n' \
 			'COMMON_FLAGS += -fno-common\n' \
 			'COMMON_FLAGS += -Irtemsbsd/include\n' \