diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
index df28cab297..e1655d0b74 100644
--- a/package/broadcom-diag/src/diag.c
+++ b/package/broadcom-diag/src/diag.c
@@ -70,6 +70,7 @@ enum {
 	WL500GP,
 	WL500GPV2,
 	WL500W,
+	WL520GC,
 	WL520GU,
 	ASUS_4702,
 	WL700GE,
@@ -305,6 +306,17 @@ static struct platform_t __initdata platforms[] = {
 			{ .name = "power",	.gpio = 1 << 5, .polarity = REVERSE },
 		},
 	},
+	[WL520GC] = {
+		.name		= "ASUS WL-520GC",
+		.buttons	= {
+			{ .name = "reset",	.gpio = 1 << 2 },
+			{ .name = "ses",	.gpio = 1 << 3 },
+		},
+		.leds		= {
+		{ .name = "power",	.gpio = 1 << 0, .polarity = REVERSE },
+			{ .name = "wlan",	.gpio = 1 << 1, .polarity = REVERSE },
+		},
+	},
 	[WL520GU] = {
 		.name		= "ASUS WL-520gU",
 		.buttons	= {
@@ -687,6 +699,8 @@ static struct platform_t __init *platform_detect(void)
 	if (buf = nvram_get("hardware_version")) {
 		if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 			return &platforms[WL500GPV2];
+		if (startswith(buf,"WL520GC-")) /* WL520GU-* */
+			return &platforms[WL520GC];
 		if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 			return &platforms[WL520GU];
 	}