diff --git a/doc/configuration.txt b/doc/configuration.txt
index 8347e8a..cf52148 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -711,6 +711,7 @@
  * Debugging
    - debug
    - quiet
+   - zero-warning
 
 
 3.1. Process management and security
@@ -2170,6 +2171,14 @@
   Do not display any message during startup. It is equivalent to the command-
   line argument "-q".
 
+zero-warning
+  When this option is set, haproxy will refuse to start if any warning was
+  emitted while processing the configuration. It is highly recommended to set
+  this option on configurations that are not changed often, as it helps detect
+  subtle mistakes and keep the configuration clean and forward-compatible. Note
+  that "haproxy -c" will also report errors in such a case. This option is
+  equivalent to command line argument "-dW".
+
 
 3.4. Userlists
 --------------
diff --git a/doc/management.txt b/doc/management.txt
index a1d8c9c..181dcf9 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -228,6 +228,15 @@
     environment. Never use this in an init script as it degrades SSL security
     to the servers.
 
+  -dW : if set, haproxy will refuse to start if any warning was emitted while
+   processing the configuration. This helps detect subtle mistakes and keep the
+   configuration clean and portable across versions. It is recommended to set
+   this option in service scripts when configurations are managed by humans,
+   but it is recommended not to use it with generated configurations, which
+   tend to emit more warnings. It may be combined with "-c" to cause warnings
+   in checked configurations to fail. This is equivalent to global option
+   "zero-warning".
+
   -db : disable background mode and multi-process mode. The process remains in
     foreground. It is mainly used during development or during small tests, as
     Ctrl-C is enough to stop the process. Never use it in an init script.
diff --git a/include/types/global.h b/include/types/global.h
index 718cfd8..407fbff 100644
--- a/include/types/global.h
+++ b/include/types/global.h
@@ -48,6 +48,7 @@
 #define	MODE_FOREGROUND	0x40
 #define	MODE_MWORKER	0x80    /* Master Worker */
 #define	MODE_MWORKER_WAIT	0x100    /* Master Worker wait mode */
+#define	MODE_ZERO_WARNING       0x200    /* warnings cause a failure */
 
 /* list of last checks to perform, depending on config options */
 #define LSTCHK_CAP_BIND	0x00000001	/* check that we can bind to any port */
diff --git a/src/cfgparse-global.c b/src/cfgparse-global.c
index 0e69059..2b32497 100644
--- a/src/cfgparse-global.c
+++ b/src/cfgparse-global.c
@@ -133,6 +133,11 @@
 			goto out;
 		global.mode |= MODE_QUIET;
 	}
+	else if (!strcmp(args[0], "zero-warning")) {
+		if (alertif_too_many_args(0, file, linenum, args, &err_code))
+			goto out;
+		global.mode |= MODE_ZERO_WARNING;
+	}
 	else if (!strcmp(args[0], "tune.runqueue-depth")) {
 		if (alertif_too_many_args(1, file, linenum, args, &err_code))
 			goto out;
diff --git a/src/haproxy.c b/src/haproxy.c
index 359b970..b06a780 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -658,6 +658,7 @@
 #endif
 		"        -dr ignores server address resolution failures\n"
 		"        -dV disables SSL verify on servers side\n"
+		"        -dW fails if any warning is emitted\n"
 		"        -sf/-st [pid ]* finishes/terminates old pids.\n"
 		"        -x <unix_socket> get listening sockets from a unix socket\n"
 		"        -S <bind>[,<bind options>...] new master CLI\n"
@@ -1762,6 +1763,8 @@
 				arg_mode |= MODE_VERBOSE;
 			else if (*flag == 'd' && flag[1] == 'b')
 				arg_mode |= MODE_FOREGROUND;
+			else if (*flag == 'd' && flag[1] == 'W')
+				arg_mode |= MODE_ZERO_WARNING;
 			else if (*flag == 'd' && flag[1] == 'M')
 				mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
 			else if (*flag == 'd' && flag[1] == 'r')
@@ -1895,7 +1898,7 @@
 	}
 
 	global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
-				    | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
+				    | MODE_QUIET | MODE_CHECK | MODE_DEBUG | MODE_ZERO_WARNING));
 
 	if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
 		unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
@@ -2097,6 +2100,11 @@
 		exit(1);
 	}
 
+	if (warned & WARN_ANY && global.mode & MODE_ZERO_WARNING) {
+		ha_alert("Some warnings were found and 'zero-warning' is set. Aborting.\n");
+		exit(1);
+	}
+
 	if (global.mode & MODE_CHECK) {
 		struct peers *pr;
 		struct proxy *px;