diff --git a/board/delta/nand.c b/board/delta/nand.c
index 14382f5..aff7c54 100644
--- a/board/delta/nand.c
+++ b/board/delta/nand.c
@@ -46,8 +46,6 @@
 # define DFC_DEBUG3(fmt, args...)
 #endif
 
-#define MIN(x, y)		((x < y) ? x : y)
-
 /* These really don't belong here, as they are specific to the NAND Model */
 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 
diff --git a/board/zylonite/nand.c b/board/zylonite/nand.c
index 895fb2b..899445e 100644
--- a/board/zylonite/nand.c
+++ b/board/zylonite/nand.c
@@ -46,8 +46,6 @@
 # define DFC_DEBUG3(fmt, args...)
 #endif
 
-#define MIN(x, y)		((x < y) ? x : y)
-
 /* These really don't belong here, as they are specific to the NAND Model */
 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 
diff --git a/common/cmd_bedbug.c b/common/cmd_bedbug.c
index 3e597f9..e6277c9 100644
--- a/common/cmd_bedbug.c
+++ b/common/cmd_bedbug.c
@@ -13,10 +13,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 extern void show_regs __P ((struct pt_regs *));
 extern int run_command __P ((const char *, int));
 extern char console_buffer[];
diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index 3ebb6d9..4d8e1d27 100644
--- a/common/cmd_elf.c
+++ b/common/cmd_elf.c
@@ -23,10 +23,6 @@
 DECLARE_GLOBAL_DATA_PTR;
 #endif
 
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 int valid_elf_image (unsigned long addr);
 unsigned long load_elf_image (unsigned long addr);
 
diff --git a/cpu/ixp/npe/include/IxEthDB_p.h b/cpu/ixp/npe/include/IxEthDB_p.h
index e7c67ae..ccec7ea 100644
--- a/cpu/ixp/npe/include/IxEthDB_p.h
+++ b/cpu/ixp/npe/include/IxEthDB_p.h
@@ -193,8 +193,6 @@
 #define LEFT  (-1)
 
 /* macros */
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-
 #define IX_ETH_DB_CHECK_PORT_EXISTS(portID) \
 { \
     if ((portID) >= IX_ETH_DB_NUMBER_OF_PORTS) \
diff --git a/include/common.h b/include/common.h
index b8a654a..df64bf0 100644
--- a/include/common.h
+++ b/include/common.h
@@ -177,6 +177,9 @@
 	({ typeof (X) __x = (X), __y = (Y);	\
 		(__x > __y) ? __x : __y; })
 
+#define MIN(x, y)  min(x, y)
+#define MAX(x, y)  max(x, y)
+
 
 /**
  * container_of - cast a member of a structure out to the containing structure
diff --git a/include/usbdcore.h b/include/usbdcore.h
index cb2be72..206dbbc 100644
--- a/include/usbdcore.h
+++ b/include/usbdcore.h
@@ -126,14 +126,6 @@
 				})
 #endif
 
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
-
 /*
  * Structure member address manipulation macros.
  * These are used by client code (code using the urb_link routines), since