diff --git a/targets/targets.json b/targets/targets.json
index ac7fc191f5..8216d79c62 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -7575,8 +7575,7 @@
             "PWMOUT",
             "SPI",
             "SPISLAVE",
-            "SPI_ASYNCH",
-            "RESET_REASON"
+            "SPI_ASYNCH"
         ],
         "detect_code": [
             "0221"