diff --git a/services/fs_manager/partitions.cpp b/services/fs_manager/partitions.cpp
index 102550c24f318d59c98cc922ba12acd9e0376283..6d758ad296955b89f2d5b16c41cbade8b9a239a0 100644
--- a/services/fs_manager/partitions.cpp
+++ b/services/fs_manager/partitions.cpp
@@ -317,6 +317,7 @@ int DiskAlloc(const std::string &path)
 
     disk = NewBlockDisk(*dev, GPT);
     if (disk == nullptr) {
+        free(dev);
         LOG(ERROR) << "NewBlockDevice nullptr ";
         return 0;
     }