diff --git a/dlls/wpcap/wpcap.c b/dlls/wpcap/wpcap.c
index 304cc2b394f..791a04dbf31 100644
--- a/dlls/wpcap/wpcap.c
+++ b/dlls/wpcap/wpcap.c
@@ -24,6 +24,12 @@
 WINE_DEFAULT_DEBUG_CHANNEL(wpcap);
 WINE_DECLARE_DEBUG_CHANNEL(winediag);
 
+int CDECL wine_pcap_datalink(pcap_t *p)
+{
+    TRACE("(%p)\n", p);
+    return pcap_datalink(p);
+}
+
 int CDECL wine_pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf)
 {
     int ret;
diff --git a/dlls/wpcap/wpcap.spec b/dlls/wpcap/wpcap.spec
index 4c9d5af746e..7e4ae8668ad 100644
--- a/dlls/wpcap/wpcap.spec
+++ b/dlls/wpcap/wpcap.spec
@@ -11,7 +11,7 @@
 @ stub pcap_compile
 @ stub pcap_compile_nopcap
 @ stub pcap_createsrcstr
-@ stub pcap_datalink
+@ cdecl pcap_datalink(ptr) wine_pcap_datalink
 @ stub pcap_datalink_name_to_val
 @ stub pcap_datalink_val_to_description
 @ stub pcap_datalink_val_to_name