diff --git a/wolfcrypt/src/tfm.c b/wolfcrypt/src/tfm.c
index dbd1d734b..7fe0c43dc 100644
--- a/wolfcrypt/src/tfm.c
+++ b/wolfcrypt/src/tfm.c
@@ -2548,10 +2548,11 @@ int mp_mod_d(fp_int *a, fp_digit b, fp_digit *c)
 
 #ifdef WOLFSSL_KEY_GEN
 
-void fp_gcd(fp_int *a, fp_int *b, fp_int *c);
-void fp_lcm(fp_int *a, fp_int *b, fp_int *c);
-int  fp_isprime(fp_int *a);
-int  fp_randprime(fp_int* N, int len, WC_RNG* rng, void* heap);
+static void fp_gcd(fp_int *a, fp_int *b, fp_int *c);
+static void fp_lcm(fp_int *a, fp_int *b, fp_int *c);
+static int  fp_isprime_ex(fp_int *a, int t);
+static int  fp_isprime(fp_int *a);
+static int  fp_randprime(fp_int* N, int len, WC_RNG* rng, void* heap);
 
 int mp_gcd(fp_int *a, fp_int *b, fp_int *c)
 {
diff --git a/wolfssl/wolfcrypt/tfm.h b/wolfssl/wolfcrypt/tfm.h
index 94efa2416..db0965d06 100644
--- a/wolfssl/wolfcrypt/tfm.h
+++ b/wolfssl/wolfcrypt/tfm.h
@@ -518,9 +518,9 @@ int fp_exptmod(fp_int *a, fp_int *b, fp_int *c, fp_int *d);
 
 #define FP_PRIME_SIZE      256
 /* 256 trial divisions + 8 Miller-Rabins, returns FP_YES if probable prime  */
-int fp_isprime(fp_int *a);
+/*int fp_isprime(fp_int *a);*/
 /* extended version of fp_isprime, do 't' Miller-Rabins instead of only 8 */
-int fp_isprime_ex(fp_int *a, int t);
+/*int fp_isprime_ex(fp_int *a, int t);*/
 
 /* Primality generation flags */
 /*#define TFM_PRIME_BBS      0x0001 */ /* BBS style prime */