diff --git a/dlls/winscard/winscard.c b/dlls/winscard/winscard.c
index a8a1735c2be..91fdfd378a4 100644
--- a/dlls/winscard/winscard.c
+++ b/dlls/winscard/winscard.c
@@ -141,3 +141,10 @@ LONG WINAPI SCardListReadersW(SCARDCONTEXT context, const WCHAR *groups, WCHAR *
     FIXME("(%lx, %s, %p, %p) stub\n", context, debugstr_w(groups), readers, buflen);
     return SCARD_E_NO_READERS_AVAILABLE;
 }
+
+LONG WINAPI SCardCancel(SCARDCONTEXT context)
+{
+    FIXME("(%lx) stub\n", context);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return SCARD_F_INTERNAL_ERROR;
+}
diff --git a/dlls/winscard/winscard.spec b/dlls/winscard/winscard.spec
index d2ae62a4a7d..037d3bef903 100644
--- a/dlls/winscard/winscard.spec
+++ b/dlls/winscard/winscard.spec
@@ -6,7 +6,7 @@
 @ stdcall SCardAddReaderToGroupA(long str str)
 @ stdcall SCardAddReaderToGroupW(long wstr wstr)
 @ stub SCardBeginTransaction
-@ stub SCardCancel
+@ stdcall SCardCancel(long)
 @ stub SCardConnectA
 @ stub SCardConnectW
 @ stub SCardControl