diff --git a/Makefile b/Makefile
index 6e5d0e56..7363d5db 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,7 @@ CFLAGS+=-std=gnu11 -O2 -g -MMD -Wall -fPIC			\
 	-DNO_BCACHEFS_FS					\
 	-DNO_BCACHEFS_SYSFS					\
 	-DVERSION_STRING='"$(VERSION)"'				\
+	-D__SANE_USERSPACE_TYPES__				\
 	$(EXTRA_CFLAGS)
 
 # Intenionally not doing the above to $(LDFLAGS) because we rely on
diff --git a/include/linux/types.h b/include/linux/types.h
index 6ae97c42..004d5eb0 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -10,7 +10,9 @@
 #include <sys/types.h>
 #include <linux/posix_types.h>
 
+#ifndef __SANE_USERSPACE_TYPES__
 #define __SANE_USERSPACE_TYPES__	/* For PPC64, to get LL64 types */
+#endif
 #include <asm/types.h>
 
 #include <linux/cache.h>