diff --git a/src/ssl.c b/src/ssl.c
index 238c5fa4a..b03d7dc49 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -15794,7 +15794,7 @@ void wolfSSL_DES_set_odd_parity(WOLFSSL_DES_cblock* myDes)
 
 
 void wolfSSL_DES_ecb_encrypt(WOLFSSL_DES_cblock* desa,
-             WOLFSSL_DES_cblock* desb, WOLFSSL_DES_key_schedule* key, int len)
+             WOLFSSL_DES_cblock* desb, WOLFSSL_DES_key_schedule* key, int dir)
 {
 #ifdef WOLFSSL_DES_ECB
     WOLFSSL_ENTER("wolfSSL_DES_ecb_encrypt");
@@ -15803,10 +15803,10 @@ void wolfSSL_DES_ecb_encrypt(WOLFSSL_DES_cblock* desa,
     if (desa == NULL || key == NULL){
         WOLFSSL_MSG("Bad argument passed to wolfSSL_DES_ecb_encrypt");
     } else {
-      if (wc_Des3_SetKey(&enc, (const byte*) key, (const byte*) NULL, DES_ENCRYPTION) != 0){
+      if (wc_Des3_SetKey(&enc, (const byte*) key, (const byte*) NULL, dir) != 0){
         WOLFSSL_MSG("wc_Des3_SetKey return error.");
       }
-      if (wc_Des3_EcbEncrypt(&enc, (byte*) desb, (const byte*) desa, len) != 0){
+      if (wc_Des3_EcbEncrypt(&enc, (byte*) desb, (const byte*) desa, sizeof(desb)) != 0){
         WOLFSSL_MSG("wc_Des3_EcbEncrpyt return error.");
       }
     }
diff --git a/tests/api.c b/tests/api.c
index 7fb55c6e1..c9f7221c1 100644
--- a/tests/api.c
+++ b/tests/api.c
@@ -3028,7 +3028,34 @@ static void test_wolfSSL_BIO(void)
     #endif
 }
 
+static void test_wolfSSL_DES_ecb_encrypt(void)
+{
+    #if defined(OPENSSL_EXTRA) && !defined(NO_DES3)
+    WOLFSSL_DES_cblock input1,input2,output1,output2,back1,back2;
+    WOLFSSL_DES_key_schedule key;
 
+    memcpy(key,"12345678",sizeof(WOLFSSL_DES_key_schedule));
+    memcpy(input1, "Iamhuman",sizeof(WOLFSSL_DES_cblock));
+    memcpy(input2, "Whoisit?",sizeof(WOLFSSL_DES_cblock));
+    memset(output1, 0, sizeof(WOLFSSL_DES_cblock));
+    memset(output2, 0, sizeof(WOLFSSL_DES_cblock));
+    memset(back1, 0, sizeof(WOLFSSL_DES_cblock));
+    memset(back2, 0, sizeof(WOLFSSL_DES_cblock));
+
+    wolfSSL_DES_ecb_encrypt(&input1,&output1,&key,DES_ENCRYPT);
+    wolfSSL_DES_ecb_encrypt(&input2,&output2,&key,DES_ENCRYPT);
+
+    // Decrypt messages
+    int ret1 = 0;
+    int ret2 = 0; 
+    wolfSSL_DES_ecb_encrypt(&output1,&back1,&key,DES_DECRYPT);
+    ret1 = memcmp((unsigned char *) back1,(unsigned char *) input1,sizeof(WOLFSSL_DES_cblock));
+    AssertIntEQ(ret1,0);
+    wolfSSL_DES_ecb_encrypt(&output2,&back2,&key,DES_DECRYPT);
+    ret2 = memcmp((unsigned char *) back2,(unsigned char *) input2,sizeof(WOLFSSL_DES_cblock));
+    AssertIntEQ(ret2,0);
+    #endif
+}
 /*----------------------------------------------------------------------------*
  | wolfCrypt ASN
  *----------------------------------------------------------------------------*/
@@ -3133,7 +3160,7 @@ void ApiTest(void)
     test_wolfSSL_set_options();
     test_wolfSSL_PEM_read_bio();
     test_wolfSSL_BIO();
-
+    test_wolfSSL_DES_ecb_encrypt();
     AssertIntEQ(test_wolfSSL_Cleanup(), SSL_SUCCESS);
 
     /* wolfCrypt ASN tests */