diff --git a/src/libstrongswan/crypto/ca.h b/src/libstrongswan/crypto/ca.h
index bce39fb95..ae10e253e 100644
--- a/src/libstrongswan/crypto/ca.h
+++ b/src/libstrongswan/crypto/ca.h
@@ -26,12 +26,13 @@
 typedef struct ca_info_t ca_info_t;
 
 #include <library.h>
-
 #include <credential_store.h>
 
 #include "x509.h"
 #include "crl.h"
 
+#define MAX_CA_PATH_LEN		7
+
 /**
  * @brief X.509 certification authority information record
  *