diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 92d1da0..2ba1c19 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -4064,7 +4064,7 @@
 
     if( pmscounter == ssl->handshake->pmslen )
     {
-        mbedtls_platform_enforce_volatile_reads();
+        mbedtls_platform_random_delay(50);
         if( pmscounter == ssl->handshake->pmslen )
         {
             ssl->handshake->premaster_generated = MBEDTLS_SSL_FI_FLAG_SET;
@@ -4651,7 +4651,7 @@
 
     if( ret == 0 )
     {
-        mbedtls_platform_enforce_volatile_reads();
+        mbedtls_platform_random_delay(50);
 
         if( ret == 0 )
         {