diff --git a/README.txt b/README.txt
index caac95d..6f5b0ee 100644
--- a/README.txt
+++ b/README.txt
@@ -155,11 +155,12 @@ features.
 >>> RELEASE HISTORY <<<
 
   Nov. 11th 2014  v1.4.7
-                  Average hashrate (based on the 50 last scans)
+                  Average hashrate (based on the 20 last scans)
                   Rewrite blake algo
                   Add the -i (gpu threads/intensity parameter)
                   Add some X11 optimisations based on sp_ commits
                   Fix quark reported hashrate and benchmark mode for some algos
+                  Enhance json config file param (int/float/false) (-c config.json)
                   Update windows prebuilt curl to 7.38.0
 
   Oct. 26th 2014  v1.4.6
diff --git a/cpu-miner.c b/cpu-miner.c
index 53edc76..395fedc 100644
--- a/cpu-miner.c
+++ b/cpu-miner.c
@@ -1853,11 +1853,23 @@ static void parse_config(void)
 			char *s = strdup(json_string_value(val));
 			if (!s)
 				break;
-			// applog(LOG_DEBUG, "%s -%c %s", options[i].name, options[i].val, s);
 			parse_arg(options[i].val, s);
 			free(s);
-		} else if (!options[i].has_arg && json_is_true(val))
-			parse_arg(options[i].val, "");
+		}
+		else if (options[i].has_arg && json_is_integer(val)) {
+			char buf[16];
+			sprintf(buf, "%d", json_integer_value(val));
+			parse_arg(options[i].val, buf);
+		}
+		else if (options[i].has_arg && json_is_real(val)) {
+			char buf[16];
+			sprintf(buf, "%f", json_real_value(val));
+			parse_arg(options[i].val, buf);
+		}
+		else if (!options[i].has_arg) {
+			if (json_is_true(val))
+				parse_arg(options[i].val, "");
+		}
 		else
 			applog(LOG_ERR, "JSON option %s invalid",
 				options[i].name);
diff --git a/example-cfg.json b/example-cfg.json
index 05837dd..f6f848a 100644
--- a/example-cfg.json
+++ b/example-cfg.json
@@ -2,8 +2,10 @@
 	"_comment" : "todo: support /* comments */",
 
 	"algo" : "blake",
+	"intensity": 19,
+	"diff": 0.5,
 
-	"_quiet" : true,
+	"quiet" : false,
 
 	"url" : "stratum+tcp://www.hashharder.com:9585",
 	"user" : "NaEcVrdzoCWHUYXb7X8QoafoKS9UV69Yk4",