diff --git a/dlls/d3dxof/d3dxof_private.h b/dlls/d3dxof/d3dxof_private.h
index 40870ac97dd..186e707ba36 100644
--- a/dlls/d3dxof/d3dxof_private.h
+++ b/dlls/d3dxof/d3dxof_private.h
@@ -162,7 +162,6 @@ typedef struct {
 
 HRESULT IDirectXFileImpl_Create(IUnknown *pUnkOuter, LPVOID *ppObj) DECLSPEC_HIDDEN;
 
-BOOL read_bytes(parse_buffer * buf, LPVOID data, DWORD size) DECLSPEC_HIDDEN;
 HRESULT parse_header(parse_buffer *buf, BYTE **decomp_buffer_ptr) DECLSPEC_HIDDEN;
 BOOL parse_object(parse_buffer * buf) DECLSPEC_HIDDEN;
 BOOL parse_templates(parse_buffer * buf) DECLSPEC_HIDDEN;
diff --git a/dlls/d3dxof/parsing.c b/dlls/d3dxof/parsing.c
index 4d722199d9d..cbf1761e8c1 100644
--- a/dlls/d3dxof/parsing.c
+++ b/dlls/d3dxof/parsing.c
@@ -166,7 +166,7 @@ static void dump_template(xtemplate* templates_array, xtemplate* ptemplate)
   DPRINTF("}\n");
 }
 
-BOOL read_bytes(parse_buffer * buf, LPVOID data, DWORD size)
+static BOOL read_bytes(parse_buffer * buf, LPVOID data, DWORD size)
 {
   if (buf->rem_bytes < size)
     return FALSE;