diff --git a/ctaocrypt/benchmark/benchmark.c b/ctaocrypt/benchmark/benchmark.c
index 87a8dfdd7..018bd7bf7 100644
--- a/ctaocrypt/benchmark/benchmark.c
+++ b/ctaocrypt/benchmark/benchmark.c
@@ -4,7 +4,7 @@
 #include <string.h>
 #include <stdio.h>
 
-#include "des3.h"
+#include "ctc_des3.h"
 #include "ctc_arc4.h"
 #include "hc128.h"
 #include "rabbit.h"
diff --git a/ctaocrypt/include/des3.h b/ctaocrypt/include/ctc_des3.h
similarity index 99%
rename from ctaocrypt/include/des3.h
rename to ctaocrypt/include/ctc_des3.h
index 3bcb8bf1a..85bb0102f 100644
--- a/ctaocrypt/include/des3.h
+++ b/ctaocrypt/include/ctc_des3.h
@@ -1,4 +1,4 @@
-/* des3.h
+/* ctc_des3.h
  *
  * Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
  *
diff --git a/ctaocrypt/src/asn.c b/ctaocrypt/src/asn.c
index 60e1336ee..c5bf2ebe6 100644
--- a/ctaocrypt/src/asn.c
+++ b/ctaocrypt/src/asn.c
@@ -30,7 +30,7 @@
 #include "ctc_md5.h"
 #include "ctc_error.h"
 #include "pwdbased.h"
-#include "des3.h"
+#include "ctc_des3.h"
 #include "sha256.h"
 #include "logging.h"
 
diff --git a/ctaocrypt/src/des3.c b/ctaocrypt/src/des3.c
index b8ae83fc5..fb6f62a9f 100644
--- a/ctaocrypt/src/des3.c
+++ b/ctaocrypt/src/des3.c
@@ -22,7 +22,7 @@
 
 #ifndef NO_DES3
 
-#include "des3.h"
+#include "ctc_des3.h"
 #ifdef NO_INLINE
     #include "ctc_misc.h"
 #else
diff --git a/ctaocrypt/test/test.c b/ctaocrypt/test/test.c
index 97b385c72..3cfa07664 100644
--- a/ctaocrypt/test/test.c
+++ b/ctaocrypt/test/test.c
@@ -14,7 +14,7 @@
 #include "ctc_random.h"
 #include "ctc_coding.h"
 #include "ctc_asn.h"
-#include "des3.h"
+#include "ctc_des3.h"
 #include "ctc_aes.h"
 #include "ctc_hmac.h"
 #include "ctc_dh.h"
diff --git a/include/cyassl_int.h b/include/cyassl_int.h
index 47d36a2ec..685e511a0 100644
--- a/include/cyassl_int.h
+++ b/include/cyassl_int.h
@@ -27,7 +27,7 @@
 
 #include "ctc_types.h"
 #include "ctc_random.h"
-#include "des3.h"
+#include "ctc_des3.h"
 #include "hc128.h"
 #include "rabbit.h"
 #include "ctc_asn.h"
diff --git a/src/ssl.c b/src/ssl.c
index a09ba6164..35f2cad14 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -37,7 +37,7 @@
     /* openssl headers end, cyassl internal headers next */
     #include "ctc_hmac.h"
     #include "ctc_random.h"
-    #include "des3.h"
+    #include "ctc_des3.h"
     #include "ctc_md4.h"
 #endif