diff --git a/jni/utils/misc.c b/jni/utils/misc.c
index f70436f26..a5c91bf29 100644
--- a/jni/utils/misc.c
+++ b/jni/utils/misc.c
@@ -191,7 +191,10 @@ void unlock_blocks() {
 		return;
 
 	while((entry = readdir(dir))) {
-		if (entry->d_type == DT_BLK && strstr(entry->d_name, "mmc") != NULL) {
+		if (entry->d_type == DT_BLK &&
+			strstr(entry->d_name, "ram") == NULL &&
+			strstr(entry->d_name, "loop") == NULL &&
+			strstr(entry->d_name, "dm-0") == NULL) {
 			snprintf(path, sizeof(path), "%s/%s", DEV_BLOCK, entry->d_name);
 			if ((fd = xopen(path, O_RDONLY)) < 0)
 				continue;