--- a/libxfs/libxfs_priv.h
+++ b/libxfs/libxfs_priv.h
@@ -84,9 +84,6 @@ extern uint32_t crc32c_le(uint32_t crc,
 /* for all the support code that uses progname in error messages */
 extern char    *progname;
 
-#undef ASSERT
-#define ASSERT(ex) assert(ex)
-
 #ifndef EWRONGFS
 #define EWRONGFS	EINVAL
 #endif