diff --git a/channels/chan_alsa.c b/channels/chan_alsa.c
index 2d30ba5167..5a375c5c0a 100644
--- a/channels/chan_alsa.c
+++ b/channels/chan_alsa.c
@@ -591,9 +591,6 @@ static struct ast_channel *alsa_request(const char *type, int format, void *data
 
 static char *autoanswer_complete(const char *line, const char *word, int pos, int state)
 {
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
 	switch (state) {
 		case 0:
 			if (!ast_strlen_zero(word) && !strncasecmp(word, "on", MIN(strlen(word), 2)))
diff --git a/channels/chan_console.c b/channels/chan_console.c
index ab91131c77..c125a66d70 100644
--- a/channels/chan_console.c
+++ b/channels/chan_console.c
@@ -101,13 +101,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  */
 #define TEXT_SIZE	256
 
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 /*! \brief Dance, Kirby, Dance! @{ */
 #define V_BEGIN " --- <(\"<) --- "
 #define V_END   " --- (>\")> ---\n"
diff --git a/channels/chan_oss.c b/channels/chan_oss.c
index c9c0c7d4a4..e6126d2643 100644
--- a/channels/chan_oss.c
+++ b/channels/chan_oss.c
@@ -229,13 +229,6 @@ END_CONFIG
 #define DEV_DSP "/dev/dsp"
 #endif
 
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 static char *config = "oss.conf";	/* default config file */
 
 static int oss_debug;
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 1c6fcd3a42..062e058981 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -217,10 +217,6 @@ static int min_expiry = DEFAULT_MIN_EXPIRY;        /*!< Minimum accepted registr
 static int max_expiry = DEFAULT_MAX_EXPIRY;        /*!< Maximum accepted registration time */
 static int default_expiry = DEFAULT_DEFAULT_EXPIRY;
 
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 #define CALLERID_UNKNOWN             "Anonymous"
 #define FROMDOMAIN_INVALID           "anonymous.invalid"
 
diff --git a/channels/chan_usbradio.c b/channels/chan_usbradio.c
index 975bf72f23..26d686a8ab 100644
--- a/channels/chan_usbradio.c
+++ b/channels/chan_usbradio.c
@@ -252,13 +252,6 @@ END_CONFIG
 #define DEV_DSP "/dev/dsp"
 #endif
 
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
 static const char *config = "usbradio.conf";	/* default config file */
 static const char *config1 = "usbradio_tune.conf";    /* tune config file */
 
diff --git a/include/asterisk/utils.h b/include/asterisk/utils.h
index e3297b0eca..4ffe8d07c7 100644
--- a/include/asterisk/utils.h
+++ b/include/asterisk/utils.h
@@ -220,6 +220,11 @@ void ast_sha1_hash(char *output, char *input);
 
 int ast_base64encode_full(char *dst, const unsigned char *src, int srclen, int max, int linebreaks);
 
+#undef MIN
+#define MIN(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); ((__a > __b) ? __b : __a);})
+#undef MAX
+#define MAX(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); ((__a < __b) ? __b : __a);})
+
 /*!
  * \brief Encode data in base64
  * \param dst the destination buffer
diff --git a/main/poll.c b/main/poll.c
index bb93125a6b..62e681dca8 100644
--- a/main/poll.c
+++ b/main/poll.c
@@ -83,14 +83,6 @@
 
 #ifdef AST_POLL_COMPAT
 
-/*---------------------------------------------------------------------------*\
-				  Macros
-\*---------------------------------------------------------------------------*/
-
-#ifndef MAX
-#define MAX(a,b)	((a) > (b) ? (a) : (b))
-#endif
-
 /*---------------------------------------------------------------------------*\
 			     Private Functions
 \*---------------------------------------------------------------------------*/