diff --git a/reactos/drivers/network/ndis/ndis.def b/reactos/drivers/network/ndis/ndis.def
index 1efe5b9e83d..b3d9b41cccb 100644
--- a/reactos/drivers/network/ndis/ndis.def
+++ b/reactos/drivers/network/ndis/ndis.def
@@ -100,7 +100,7 @@ NdisGetCurrentSystemTime@4
 NdisGetDriverHandle@8
 NdisGetFirstBufferFromPacket@20
 NdisGetReceivedPacket@8
-NdisGetSystemUptime@4
+NdisGetSystemUpTime@4
 NdisIMAssociateMiniport@8
 NdisIMCancelInitializeDeviceInstance@8
 NdisIMCopySendCompletePerPacketInfo@8
diff --git a/reactos/drivers/network/ndis/ndis/stubs.c b/reactos/drivers/network/ndis/ndis/stubs.c
index bc0212cf293..3e91141d49d 100644
--- a/reactos/drivers/network/ndis/ndis/stubs.c
+++ b/reactos/drivers/network/ndis/ndis/stubs.c
@@ -526,7 +526,7 @@ NdisGetReceivedPacket(
  */
 VOID
 EXPORT
-NdisGetSystemUptime(
+NdisGetSystemUpTime(
     OUT PULONG  pSystemUpTime)
 /*
  * FUNCTION:
diff --git a/reactos/include/ddk/ndis.h b/reactos/include/ddk/ndis.h
index baf39ef6834..af726b26366 100644
--- a/reactos/include/ddk/ndis.h
+++ b/reactos/include/ddk/ndis.h
@@ -3192,7 +3192,7 @@ NdisGetReceivedPacket(
 NDISAPI
 VOID
 DDKAPI
-NdisGetSystemUptime(
+NdisGetSystemUpTime(
   OUT PULONG  pSystemUpTime);
 
 NDISAPI