diff --git a/library/bignum.c b/library/bignum.c
index 846f5a331..b147a543a 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -41,7 +41,7 @@
 #include "mbedtls/bn_mul.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
-#include "constant_time.h"
+#include "constant_time_internal.h"
 
 #include <string.h>
 
diff --git a/library/constant_time.c b/library/constant_time.c
index 3836d54d5..651bbcb15 100644
--- a/library/constant_time.c
+++ b/library/constant_time.c
@@ -23,7 +23,7 @@
  */
 
 #include "common.h"
-#include "constant_time.h"
+#include "constant_time_internal.h"
 #include "mbedtls/constant_time.h"
 #include "mbedtls/error.h"
 #include "mbedtls/platform_util.h"
diff --git a/library/constant_time.h b/library/constant_time_internal.h
similarity index 100%
rename from library/constant_time.h
rename to library/constant_time_internal.h
diff --git a/library/rsa.c b/library/rsa.c
index 3866b7341..a395542c3 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -44,7 +44,7 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
-#include "constant_time.h"
+#include "constant_time_internal.h"
 #include "mbedtls/constant_time.h"
 
 #include <string.h>
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index 58f41be88..59cb9d288 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -44,7 +44,7 @@
 #include "mbedtls/error.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/version.h"
-#include "constant_time.h"
+#include "constant_time_internal.h"
 #include "mbedtls/constant_time.h"
 
 #include <string.h>
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 8ef8e905a..d9f226cd1 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -34,7 +34,7 @@
 #include "mbedtls/debug.h"
 #include "mbedtls/error.h"
 #include "mbedtls/platform_util.h"
-#include "constant_time.h"
+#include "constant_time_internal.h"
 #include "mbedtls/constant_time.h"
 
 #include <string.h>
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index a7efb0400..b18ed423d 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -8,7 +8,7 @@
 #include <mbedtls/debug.h>
 #include <ssl_tls13_keys.h>
 
-#include <constant_time.h>
+#include <constant_time_internal.h>
 
 #include <test/constant_flow.h>