diff --git a/src/dyninput.c b/src/dyninput.c
index e14e1c7..e13a41c 100644
--- a/src/dyninput.c
+++ b/src/dyninput.c
@@ -29,6 +29,7 @@ char* dyninput_str(int_least64_t maxsize)
     {
         c = getchar();
         if (i + 2 == size)
+		if (i + 1 == size)
         {
             char* tmp = realloc(str, size + 1);
             if (!tmp)