diff --git a/src/init.cpp b/src/init.cpp
index 13ef7ee13e4..002f570e983 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1086,7 +1086,8 @@ static bool LockDirectory(const fs::path& dir, bool probeOnly)
 }
 static bool LockDirectories(bool probeOnly)
 {
-    return LockDirectory(gArgs.GetDataDirNet(), probeOnly);
+    return LockDirectory(gArgs.GetDataDirNet(), probeOnly) && \
+           LockDirectory(gArgs.GetBlocksDirPath(), probeOnly);
 }
 
 bool AppInitSanityChecks(const kernel::Context& kernel)