diff --git a/dahdi_cfg.c b/dahdi_cfg.c
index 3dfaf42..349a0af 100644
--- a/dahdi_cfg.c
+++ b/dahdi_cfg.c
@@ -1500,7 +1500,10 @@ int main(int argc, char *argv[])
 		error("Unable to open master device '%s'\n", MASTER_DEVICE);
 		goto finish;
 	}
-	cf = fopen(filename, "r");
+	if (strcmp(filename, "-") == 0)
+		cf = fdopen(STDIN_FILENO, "r");
+	else
+		cf = fopen(filename, "r");
 	if (cf) {
 		while((buf = readline())) {
 			if (*buf == 10) /* skip new line */
diff --git a/doc/dahdi_cfg.8 b/doc/dahdi_cfg.8
index 5e1eaa2..a5d0595 100644
--- a/doc/dahdi_cfg.8
+++ b/doc/dahdi_cfg.8
@@ -24,6 +24,8 @@ the DAHDI init script.
 .RS
 Use an alternative configuration file instead of
 .I /etc/dahdi/system.conf
+
+If \fICFG_FILE\fR is '\fB\-\fR', it is read from stdin.
 .RE
 
 .B \-C \fICHANNELS