diff --git a/cyassl/internal.h b/cyassl/internal.h
index 1142528db..6bc38919a 100644
--- a/cyassl/internal.h
+++ b/cyassl/internal.h
@@ -474,6 +474,14 @@ enum Misc {
 };
 
 
+/* don't use extra 3/4k stack space unless need to */
+#ifdef HAVE_NTRU
+    #define MAX_ENCRYPT_SZ MAX_NTRU_ENCRYPT_SZ
+#else
+    #define MAX_ENCRYPT_SZ ENCRYPT_LEN
+#endif
+
+
 /* states */
 enum states {
     NULL_STATE = 0,
diff --git a/src/internal.c b/src/internal.c
index 92041b559..d60257960 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -5088,7 +5088,7 @@ int SetCipherList(Suites* s, const char* list)
 
     int SendClientKeyExchange(CYASSL* ssl)
     {
-        byte   encSecret[MAX_NTRU_ENCRYPT_SZ];
+        byte   encSecret[MAX_ENCRYPT_SZ];
         word32 encSz = 0;
         word32 idx = 0;
         int    ret = 0;