diff --git a/MetadataCrypt.cpp b/MetadataCrypt.cpp
index a0f7b8b..0c32c3b 100644
--- a/MetadataCrypt.cpp
+++ b/MetadataCrypt.cpp
@@ -194,7 +194,7 @@
             LOG(ERROR) << "Failed to populate default-key device " << dm_name;
             return false;
         }
-        if (!dm.WaitForDevice(dm_name, 5s, crypto_blkdev)) {
+        if (!dm.WaitForDevice(dm_name, 20s, crypto_blkdev)) {
             LOG(ERROR) << "Failed to wait for default-key device " << dm_name;
             return false;
         }