diff --git a/src/main.h b/src/main.h
index 2fc83e50..6b0b0387 100644
--- a/src/main.h
+++ b/src/main.h
@@ -101,7 +101,7 @@ struct proc_st {
 	uint8_t cookie[COOKIE_SIZE]; /* the cookie associated with the session */
 
 	char tls_ciphersuite[MAX_CIPHERSUITE_NAME];
-	char dtls_ciphersuite[MAX_CIPHERSUITE_NAME];
+	char dtls_ciphersuite[MAX_DTLS_CIPHERSUITE_NAME];
 
 	/* if the session is initiated by a cookie the following two are set
 	 * and are considered when generating an IP address.
diff --git a/src/vpn.h b/src/vpn.h
index 43534800..bf27d4c4 100644
--- a/src/vpn.h
+++ b/src/vpn.h
@@ -76,7 +76,8 @@ extern int syslog_open;
 
 #define LOG_HTTP_DEBUG 2048
 
-#define MAX_CIPHERSUITE_NAME 48
+#define MAX_CIPHERSUITE_NAME 64
+#define MAX_DTLS_CIPHERSUITE_NAME 16
 #define MAX_MSG_SIZE 256
 
 typedef enum {