diff --git a/wolfssl/wolfcrypt/types.h b/wolfssl/wolfcrypt/types.h
index 4bcf24a9d..a7dc69924 100644
--- a/wolfssl/wolfcrypt/types.h
+++ b/wolfssl/wolfcrypt/types.h
@@ -311,13 +311,13 @@ decouple library dependencies with standard string, memory and so on.
     #ifndef FALL_THROUGH
         /* GCC 7 has new switch() fall-through detection */
         #if defined(__GNUC__)
-            #if ((__GNUC__ > 7) || ((__GNUC__ == 7) && (__GNUC_MINOR__ >= 1)))
-                #if defined(WOLFSSL_LINUXKM) && defined(fallthrough)
-                    #define FALL_THROUGH fallthrough
-                #else
-                    /* Use __ notation to avoid conflicts */
-                    #define FALL_THROUGH ; __attribute__ ((__fallthrough__))
-                #endif
+            #if defined(fallthrough)
+                #define FALL_THROUGH fallthrough
+            #elif ((__GNUC__ > 7) || ((__GNUC__ == 7) && (__GNUC_MINOR__ >= 1)))
+                #define FALL_THROUGH ; __attribute__ ((fallthrough))
+            #elif defined(__clang__) && defined(__clang_major__) &&
+                    (__clang_major__ >= 4)
+                #define FALL_THROUGH ; __attribute__ ((fallthrough))
             #endif
         #endif
     #endif /* FALL_THROUGH */