diff --git a/signer/config.json b/signer/config.json
index 3a3181362..c116a8657 100644
--- a/signer/config.json
+++ b/signer/config.json
@@ -1,14 +1,14 @@
 {
 	"whitelist_urls": [
-                "https?://localhost(:\\d+)?(/.*)?",
-                "https?://localhost\\.mytrezor\\.com(:\\d+)?(/.*)?",
-                "https://mytrezor\\.com(/.*)?",
-                "https://[\\w\\.-]+\\.mytrezor\\.com(/.*)?",
-                "https://trezor\\.github\\.io(/.*)?",
-                "https://greenaddress\\.it(/.*)?",
-                "https://[\\w\\.-]+\\.greenaddress\\.it(/.*)?",
-                "https://coinprism\\.com(/.*)?",
-                "https://[\\w\\.-]+\\.coinprism\\.com(/.*)?"
+		"https?://localhost(:\\d+)?(/.*)?",
+		"https?://localhost\\.mytrezor\\.com(:\\d+)?(/.*)?",
+		"https://mytrezor\\.com(/.*)?",
+		"https://[\\w\\.-]+\\.mytrezor\\.com(/.*)?",
+		"https://trezor\\.github\\.io(/.*)?",
+		"https://greenaddress\\.it(/.*)?",
+		"https://[\\w\\.-]+\\.greenaddress\\.it(/.*)?",
+		"https://coinprism\\.com(/.*)?",
+		"https://[\\w\\.-]+\\.coinprism\\.com(/.*)?"
 	],
 	"blacklist_urls": [
 	],