diff --git a/reactos/drivers/usb/usbd/usbd.def b/reactos/drivers/usb/usbd/usbd.def
deleted file mode 100644
index ac55df0ea44..00000000000
--- a/reactos/drivers/usb/usbd/usbd.def
+++ /dev/null
@@ -1,13 +0,0 @@
-;
-; Exports definition file for usbd.sys
-;
-EXPORTS
-USBD_Debug_GetHeap@16
-USBD_Debug_RetHeap@12
-USBD_CalculateUsbBandwidth@12
-USBD_CreateConfigurationRequestEx@8
-USBD_CreateConfigurationRequest@8
-USBD_GetInterfaceLength@8
-USBD_ParseConfigurationDescriptorEx@28
-USBD_ParseDescriptors@16
-;USBD_GetPdoRegistryParameters
diff --git a/reactos/drivers/usb/usbd/usbd.rbuild b/reactos/drivers/usb/usbd/usbd.rbuild
index a5bb94b8a09..5a9f43661cf 100644
--- a/reactos/drivers/usb/usbd/usbd.rbuild
+++ b/reactos/drivers/usb/usbd/usbd.rbuild
@@ -1,9 +1,10 @@
 <?xml version="1.0"?>
 <!DOCTYPE module SYSTEM "../../../tools/rbuild/project.dtd">
 <module name="usbd" type="kernelmodedriver" installbase="system32/drivers" installname="usbd.sys">
-	<importlibrary definition="usbd.def" />
+	<importlibrary definition="usbd.spec.def" />
 	<library>ntoskrnl</library>
 	<library>hal</library>
 	<file>usbd.c</file>
 	<file>usbd.rc</file>
+	<file>usbd.spec</file>
 </module>
diff --git a/reactos/drivers/usb/usbd/usbd.spec b/reactos/drivers/usb/usbd/usbd.spec
new file mode 100644
index 00000000000..5f6f8349ab0
--- /dev/null
+++ b/reactos/drivers/usb/usbd/usbd.spec
@@ -0,0 +1,9 @@
+USBD_Debug_GetHeap(long long long long)
+USBD_Debug_RetHeap(ptr long long)
+USBD_CalculateUsbBandwidth(long long long)
+USBD_CreateConfigurationRequestEx(ptr ptr)
+USBD_CreateConfigurationRequest(ptr ptr)
+USBD_GetInterfaceLength(ptr ptr)
+USBD_ParseConfigurationDescriptorEx(ptr ptr long long long long long)
+USBD_ParseDescriptors(ptr long ptr long)
+;USBD_GetPdoRegistryParameters