diff --git a/wolfcrypt/src/ecc.c b/wolfcrypt/src/ecc.c
index f27ee2192..900b8c30c 100644
--- a/wolfcrypt/src/ecc.c
+++ b/wolfcrypt/src/ecc.c
@@ -9385,6 +9385,11 @@ int ecc_mul2add(ecc_point* A, mp_int* kA,
        return err;
 
 #ifndef HAVE_THREAD_LS
+   if (initMutex == 0) { /* extra sanity check if wolfCrypt_Init not called */
+        wc_InitMutex(&ecc_fp_lock);
+        initMutex = 1;
+   }
+
    if (wc_LockMutex(&ecc_fp_lock) != 0)
       return BAD_MUTEX_E;
 #endif /* HAVE_THREAD_LS */
@@ -9508,6 +9513,11 @@ int wc_ecc_mulmod_ex(mp_int* k, ecc_point *G, ecc_point *R, mp_int* a,
        return MP_INIT_E;
 
 #ifndef HAVE_THREAD_LS
+   if (initMutex == 0) { /* extra sanity check if wolfCrypt_Init not called */
+        wc_InitMutex(&ecc_fp_lock);
+        initMutex = 1;
+   }
+
    if (wc_LockMutex(&ecc_fp_lock) != 0)
       return BAD_MUTEX_E;
 #endif /* HAVE_THREAD_LS */
@@ -9627,6 +9637,11 @@ void wc_ecc_fp_free(void)
 {
 #ifndef WOLFSSL_SP_MATH
 #ifndef HAVE_THREAD_LS
+   if (initMutex == 0) { /* extra sanity check if wolfCrypt_Init not called */
+        wc_InitMutex(&ecc_fp_lock);
+        initMutex = 1;
+   }
+
    if (wc_LockMutex(&ecc_fp_lock) == 0) {
 #endif /* HAVE_THREAD_LS */