diff --git a/src/headers/tomcrypt_custom.h b/src/headers/tomcrypt_custom.h
index ed144008..914d190a 100644
--- a/src/headers/tomcrypt_custom.h
+++ b/src/headers/tomcrypt_custom.h
@@ -126,6 +126,7 @@
    #define LTC_RIJNDAEL
    #define LTC_SHA256
    #define LTC_YARROW
+   #define LTC_ECB_MODE
    #define LTC_CTR_MODE
 
    #define LTC_RNG_MAKE_PRNG
diff --git a/tests/ecc_test.c b/tests/ecc_test.c
index f2c5ee1b..33d6363e 100644
--- a/tests/ecc_test.c
+++ b/tests/ecc_test.c
@@ -2098,5 +2098,9 @@ int ecc_test(void)
 #endif
    return CRYPT_OK;
 }
-
+#else
+int ecc_test(void)
+{
+   return CRYPT_NOP;
+}
 #endif
diff --git a/tests/file_test.c b/tests/file_test.c
index c410d896..294e9550 100644
--- a/tests/file_test.c
+++ b/tests/file_test.c
@@ -28,6 +28,10 @@ int file_test(void)
    isha256 = find_hash("sha256");
    iaes = find_cipher("aes");
 
+   /* Suppress warnings when building with -DLTC_MINIMAL */
+   LTC_UNUSED_PARAM(iaes);
+   LTC_UNUSED_PARAM(key);
+
    len = sizeof(buf);
    if ((in = fopen(fname, "rb")) == NULL)                                       return CRYPT_FILE_NOTFOUND;
    err = hash_filehandle(isha256, in, buf, &len);
diff --git a/tests/multi_test.c b/tests/multi_test.c
index e0294055..94236c1b 100644
--- a/tests/multi_test.c
+++ b/tests/multi_test.c
@@ -9,10 +9,16 @@ int multi_test(void)
    unsigned char buf[2][MAXBLOCKSIZE];
    unsigned long len, len2;
 
+   /* Suppress warnings when building with -DLTC_MINIMAL */
+   LTC_UNUSED_PARAM(key);
+   LTC_UNUSED_PARAM(buf);
+   LTC_UNUSED_PARAM(len);
+   LTC_UNUSED_PARAM(len2);
 /* register algos */
    register_hash(&sha256_desc);
    register_cipher(&aes_desc);
 
+#ifdef LTC_HASH_HELPERS
 /* HASH testing */
    len = sizeof(buf[0]);
 #if defined(ENDIAN_32BITWORD) || defined(_WIN32) || defined(ENDIAN_64BITWORD_ILP32)
@@ -43,6 +49,7 @@ int multi_test(void)
       printf("Failed: %d %lu %lu\n", __LINE__, len, len2);
       return CRYPT_FAIL_TESTVECTOR;
    }
+#endif
 
 #ifdef LTC_HMAC
    len = sizeof(buf[0]);