diff --git a/datalink814_ge/src/linklayer/linklayer814.c b/datalink814_ge/src/linklayer/linklayer814.c
index 4ac5373..f1ad3ea 100644
--- a/datalink814_ge/src/linklayer/linklayer814.c
+++ b/datalink814_ge/src/linklayer/linklayer814.c
@@ -583,7 +583,7 @@ uint32_t L2_GetFrameLen(L2_FRAME_TYPE l2FrameType)
  * @return  L1 frame type.
  *
  ******************************************************************************/
-#ifndef TEST_200KBPS
+#ifdef TEST_200KBPS
 L1_FRAME_TYPE L2_L2frame2L1frame(L2_FRAME_TYPE l2Frame)
 {
 	switch (l2Frame)