diff --git a/src/common/cbuf.c b/src/common/cbuf.c
index df00baf94d665dedd6b76e8873cd5032295536e8..e771d91ba7de5e4d56d40a5dd883949b88e8c84c 100644
--- a/src/common/cbuf.c
+++ b/src/common/cbuf.c
@@ -166,14 +166,6 @@ static int cbuf_is_valid (cbuf_t cb);
  *  Macros  *
  ************/
 
-#ifndef MAX
-#  define MAX(x,y) (((x) >= (y)) ? (x) : (y))
-#endif /* !MAX */
-
-#ifndef MIN
-#  define MIN(x,y) (((x) <= (y)) ? (x) : (y))
-#endif /* !MIN */
-
 #ifdef WITH_PTHREADS
 
 #  define cbuf_mutex_init(cb)                                                 \