diff --git a/crypto/evp/e_rc5.c b/crypto/evp/e_rc5.c
index 017a7abeb..a97f2a08b 100644
--- a/crypto/evp/e_rc5.c
+++ b/crypto/evp/e_rc5.c
@@ -62,6 +62,7 @@
 #ifndef OPENSSL_NO_RC5
 
 # include <openssl/evp.h>
+# include <internal/evp_int.h>
 # include <openssl/objects.h>
 # include "evp_locl.h"
 # include <openssl/rc5.h>