diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index 42e001bd3..d9f6c5ad2 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -86,13 +86,13 @@ WOLFSSL_LOCAL int sp_ModExp_4096(mp_int* base, mp_int* exp, mp_int* mod,
 #endif
 
 
-
+#ifndef WOLFSSL_SP_MATH
 /* math settings check */
 word32 CheckRunTimeSettings(void)
 {
     return CTC_SETTINGS;
 }
-
+#endif
 
 /* math settings size check */
 word32 CheckRunTimeFastMath(void)