diff --git a/src/installer/hw.c b/src/installer/hw.c
index 7868cbb23..1c4adc24b 100644
--- a/src/installer/hw.c
+++ b/src/installer/hw.c
@@ -1044,7 +1044,7 @@ int hw_mount_btrfs_subvolumes(const char* source) {
 	// Loop through the remain array of known subvolumes.
 	for ( int i = 1; i < LEN(btrfs_subvolumes); i++ ) {
 		snprintf(path, sizeof(path), "%s%s", DESTINATION_MOUNT_PATH, btrfs_subvolumes[i][1]);
-		snprintf(options, sizeof(options), "subvol=%s,", btrfs_subvolumes[i][0], BTRFS_MOUNT_OPTIONS);
+		snprintf(options, sizeof(options), "subvol=%s,%s", btrfs_subvolumes[i][0], BTRFS_MOUNT_OPTIONS);
 
 		// Create the directory.
 		r = hw_mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO);