diff --git a/libs/clipboard/src/windows/wf_cliprdr.c b/libs/clipboard/src/windows/wf_cliprdr.c
index adb6a87ba..b535b2ec7 100644
--- a/libs/clipboard/src/windows/wf_cliprdr.c
+++ b/libs/clipboard/src/windows/wf_cliprdr.c
@@ -1801,7 +1801,7 @@ static UINT cliprdr_send_data_request(UINT32 connID, wfClipboard *clipboard, UIN
 	return wait_response_event(connID, clipboard, clipboard->formatDataRespEvent, &clipboard->formatDataRespReceived, &clipboard->hmem);
 }
 
-UINT cliprdr_send_request_filecontents(wfClipboard *clipboard, UINT32 connID, UINT32 streamId, ULONG index,
+static UINT cliprdr_send_request_filecontents(wfClipboard *clipboard, UINT32 connID, UINT32 streamId, ULONG index,
 									   UINT32 flag, DWORD positionhigh, DWORD positionlow,
 									   ULONG nreq)
 {