diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index c714cc7d1..a919a0fbb 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -5510,7 +5510,7 @@ static wcchar fp_s_rmap = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                                     "abcdefghijklmnopqrstuvwxyz+/";
 #endif
 
-#if !defined(NO_DSA) || defined(HAVE_ECC)
+#if defined(OPENSSL_EXTRA) || !defined(NO_DSA) || defined(HAVE_ECC)
 #if DIGIT_BIT == 64 || DIGIT_BIT == 32
 static int fp_read_radix_16(fp_int *a, const char *str)
 {
diff --git a/wolfssl/wolfcrypt/tfm.h b/wolfssl/wolfcrypt/tfm.h
index 7ec518b79..8c55535d1 100644
--- a/wolfssl/wolfcrypt/tfm.h
+++ b/wolfssl/wolfcrypt/tfm.h
@@ -812,7 +812,7 @@ MP_API int mp_radix_size (mp_int * a, int radix, int *size);
     #define mp_dump(desc, a, verbose)
 #endif
 
-#if !defined(NO_DSA) || defined(HAVE_ECC)
+#if defined(OPENSSL_EXTRA) || !defined(NO_DSA) || defined(HAVE_ECC)
     MP_API int mp_read_radix(mp_int* a, const char* str, int radix);
 #endif