diff --git a/primitives/blockcache/iomanager.cpp b/primitives/blockcache/iomanager.cpp
index 3aa3f4c09..019368313 100644
--- a/primitives/blockcache/iomanager.cpp
+++ b/primitives/blockcache/iomanager.cpp
@@ -1359,7 +1359,7 @@ ioManager::ioManager(FileBufferMgr& fbm,
     go();
 }
 
-void ioManager::buildOidFileName(const BRM::OID_t oid, uint16_t dbRoot, const uint16_t partNum, const uint32_t segNum, char* file_name)
+void ioManager::buildOidFileName(const BRM::OID_t oid, uint16_t dbRoot, const uint32_t partNum, const uint16_t segNum, char* file_name)
 {
     // when it's a request for the version buffer, the dbroot comes in as 0 for legacy reasons
     if (dbRoot == 0 && oid < 1000)
diff --git a/primitives/blockcache/iomanager.h b/primitives/blockcache/iomanager.h
index eb7a9f1af..8f0f629ac 100644
--- a/primitives/blockcache/iomanager.h
+++ b/primitives/blockcache/iomanager.h
@@ -84,8 +84,8 @@ public:
 
     void buildOidFileName(const BRM::OID_t oid,
                           uint16_t dbRoot,
-                          const uint16_t partNum,
-                          const uint32_t segNum,
+                          const uint32_t partNum,
+                          const uint16_t segNum,
                           char* file_name);
 
     const uint32_t getExtentRows()