diff --git a/dlls/advapi32/eventlog.c b/dlls/advapi32/eventlog.c
index 1547aa47cf5..34a21c81183 100644
--- a/dlls/advapi32/eventlog.c
+++ b/dlls/advapi32/eventlog.c
@@ -859,7 +859,9 @@ ULONG WINAPI QueryTraceW( TRACEHANDLE handle, LPCWSTR sessionname, PEVENT_TRACE_
  */
 TRACEHANDLE WINAPI OpenTraceA( PEVENT_TRACE_LOGFILEA logfile )
 {
-    FIXME("%p: stub\n", logfile);
+    static int once;
+
+    if (!once++) FIXME("%p: stub\n", logfile);
     SetLastError(ERROR_ACCESS_DENIED);
     return INVALID_PROCESSTRACE_HANDLE;
 }
@@ -869,7 +871,9 @@ TRACEHANDLE WINAPI OpenTraceA( PEVENT_TRACE_LOGFILEA logfile )
  */
 TRACEHANDLE WINAPI OpenTraceW( PEVENT_TRACE_LOGFILEW logfile )
 {
-    FIXME("%p: stub\n", logfile);
+    static int once;
+
+    if (!once++) FIXME("%p: stub\n", logfile);
     SetLastError(ERROR_ACCESS_DENIED);
     return INVALID_PROCESSTRACE_HANDLE;
 }