diff --git a/ctaocrypt/benchmark/benchmark.c b/ctaocrypt/benchmark/benchmark.c
index 9cca00111..87a8dfdd7 100644
--- a/ctaocrypt/benchmark/benchmark.c
+++ b/ctaocrypt/benchmark/benchmark.c
@@ -14,7 +14,7 @@
 #include "sha256.h"
 #include "sha512.h"
 #include "ctc_rsa.h"
-#include "asn.h"
+#include "ctc_asn.h"
 #include "ctc_ripemd.h"
 
 #include "ctc_dh.h"
diff --git a/ctaocrypt/include/asn.h b/ctaocrypt/include/ctc_asn.h
similarity index 99%
rename from ctaocrypt/include/asn.h
rename to ctaocrypt/include/ctc_asn.h
index 4fe121009..569ebdd2b 100644
--- a/ctaocrypt/include/asn.h
+++ b/ctaocrypt/include/ctc_asn.h
@@ -1,4 +1,4 @@
-/* asn.h
+/* ctc_asn.h
  *
  * Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
  *
diff --git a/ctaocrypt/src/asn.c b/ctaocrypt/src/asn.c
index 047ffc0b3..f911473b4 100644
--- a/ctaocrypt/src/asn.c
+++ b/ctaocrypt/src/asn.c
@@ -24,7 +24,7 @@
     #include "os.h"           /* dc_rtc_api needs    */
     #include "dc_rtc_api.h"   /* to get current time */
 #endif
-#include "asn.h"
+#include "ctc_asn.h"
 #include "coding.h"
 #include "ctc_sha.h"
 #include "ctc_md5.h"
diff --git a/ctaocrypt/test/test.c b/ctaocrypt/test/test.c
index 051ec8f61..d3071a5fc 100644
--- a/ctaocrypt/test/test.c
+++ b/ctaocrypt/test/test.c
@@ -13,7 +13,7 @@
 #include "ctc_arc4.h"
 #include "ctc_random.h"
 #include "coding.h"
-#include "asn.h"
+#include "ctc_asn.h"
 #include "des3.h"
 #include "ctc_aes.h"
 #include "ctc_hmac.h"
diff --git a/include/cyassl_int.h b/include/cyassl_int.h
index 7e25c1dbb..47d36a2ec 100644
--- a/include/cyassl_int.h
+++ b/include/cyassl_int.h
@@ -30,7 +30,7 @@
 #include "des3.h"
 #include "hc128.h"
 #include "rabbit.h"
-#include "asn.h"
+#include "ctc_asn.h"
 #include "ctc_md5.h"
 #include "ctc_aes.h"
 #include "logging.h"
diff --git a/src/cyassl_int.c b/src/cyassl_int.c
index 4d7503120..a37f85368 100644
--- a/src/cyassl_int.c
+++ b/src/cyassl_int.c
@@ -23,7 +23,7 @@
 
 #include "cyassl_int.h"
 #include "cyassl_error.h"
-#include "asn.h"
+#include "ctc_asn.h"
 
 #ifdef HAVE_LIBZ
     #include "zlib.h"
diff --git a/swig/cyassl_adds.c b/swig/cyassl_adds.c
index 9dfae43b0..f9145dece 100644
--- a/swig/cyassl_adds.c
+++ b/swig/cyassl_adds.c
@@ -4,8 +4,8 @@
 #endif
 
 #include "openssl/ssl.h"
-#include "rsa.h"
-#include "asn.h"
+#include "ctc_rsa.h"
+#include "ctc_asn.h"
 
 #include <stdio.h>
 #include <stdlib.h>