diff --git a/vdc.cpp b/vdc.cpp
index 6136413..839e70e 100644
--- a/vdc.cpp
+++ b/vdc.cpp
@@ -103,10 +103,10 @@
         checkStatus(args, vold->shutdown());
     } else if (args[0] == "cryptfs" && args[1] == "checkEncryption" && args.size() == 3) {
         checkStatus(args, vold->checkEncryption(args[2]));
-    } else if (args[0] == "cryptfs" && args[1] == "mountFstab" && args.size() == 3) {
-        checkStatus(args, vold->mountFstab(args[2]));
-    } else if (args[0] == "cryptfs" && args[1] == "encryptFstab" && args.size() == 3) {
-        checkStatus(args, vold->encryptFstab(args[2]));
+    } else if (args[0] == "cryptfs" && args[1] == "mountFstab" && args.size() == 4) {
+        checkStatus(args, vold->mountFstab(args[2], args[3]));
+    } else if (args[0] == "cryptfs" && args[1] == "encryptFstab" && args.size() == 4) {
+        checkStatus(args, vold->encryptFstab(args[2], args[3]));
     } else if (args[0] == "checkpoint" && args[1] == "supportsCheckpoint" && args.size() == 2) {
         bool supported = false;
         checkStatus(args, vold->supportsCheckpoint(&supported));