diff --git a/.gitmodules b/.gitmodules
index 64446299..ce06feff 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "hyperdbg/dependencies/phnt"]
 	path = hyperdbg/dependencies/phnt
 	url = https://github.com/HyperDbg/phnt.git
+[submodule "hyperdbg/dependencies/pdbex"]
+	path = hyperdbg/dependencies/pdbex
+	url = https://github.com/HyperDbg/pdbex.git
diff --git a/hyperdbg/dependencies/pdbex b/hyperdbg/dependencies/pdbex
new file mode 160000
index 00000000..df5feead
--- /dev/null
+++ b/hyperdbg/dependencies/pdbex
@@ -0,0 +1 @@
+Subproject commit df5feead98b6c1ffe79735ebb3b83f4aa98424e0
diff --git a/hyperdbg/hprdbghv/header/debugger/kernel-level/Kd.h b/hyperdbg/hprdbghv/header/debugger/kernel-level/Kd.h
index f443b94d..0d4e5e0f 100644
--- a/hyperdbg/hprdbghv/header/debugger/kernel-level/Kd.h
+++ b/hyperdbg/hprdbghv/header/debugger/kernel-level/Kd.h
@@ -120,7 +120,7 @@ KdReadMemory(_In_ PGUEST_REGS                            Regs,
              _Inout_ PDEBUGGEE_REGISTER_READ_DESCRIPTION ReadRegisterRequest);
 
 static BOOLEAN
-KdSwitchCore(PROCESSOR_DEBUGGING_STATE * DbgState, UINT32 NewCore);
+KdSwitchCore(VIRTUAL_MACHINE_STATE * VCpu, UINT32 NewCore);
 
 static VOID
 KdCloseConnectionAndUnloadDebuggee();