diff --git a/library/blowfish.c b/library/blowfish.c
index cbf9238..7e1cfbd 100644
--- a/library/blowfish.c
+++ b/library/blowfish.c
@@ -160,7 +160,7 @@
 void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx )
 {
     BLOWFISH_VALIDATE( ctx != NULL );
-    memset( ctx, 0, sizeof( mbedtls_blowfish_context ) );
+    mbedtls_platform_memset( ctx, 0, sizeof( mbedtls_blowfish_context ) );
 }
 
 void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx )