diff --git a/wolfssl/wolfcrypt/settings.h b/wolfssl/wolfcrypt/settings.h
index 3d7c05d57..549970d3b 100644
--- a/wolfssl/wolfcrypt/settings.h
+++ b/wolfssl/wolfcrypt/settings.h
@@ -1463,7 +1463,7 @@ static char *fgets(char *buff, int sz, FILE *fp)
     #if defined(HAVE_IO_POOL) || defined(XMALLOC_USER) || defined(NO_WOLFSSL_MEMORY)
          #error static memory cannot be used with HAVE_IO_POOL, XMALLOC_USER or NO_WOLFSSL_MEMORY
     #endif
-    #ifndef USE_FAST_MATH
+    #if !defined(USE_FAST_MATH) && !defined(NO_BIG_INT)
         #error static memory requires fast math please define USE_FAST_MATH
     #endif
     #ifdef WOLFSSL_SMALL_STACK