diff --git a/lib/smb.c b/lib/smb.c
index 1d1867c..7c28d3e 100644
--- a/lib/smb.c
+++ b/lib/smb.c
@@ -27,9 +27,7 @@
 
 #if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE)
 
-#ifdef _WIN32
-#define getpid GetCurrentProcessId
-#endif
+#include <process.h>
 
 #include "smb.h"
 #include "urldata.h"