st.c | 3 ++-

diff --git a/st.c b/st.c
index 1df4fde1cbd927be170fabfcfd9d6e48e2960eac..e76aaf3338ad4e5c5d3d114532cef1d702d8f307 100644
--- a/st.c
+++ b/st.c
@@ -1531,7 +1531,8 @@ 				 * We weren't able to write out everything.
 				 * This means the buffer is getting full
 				 * again. Empty it.
 				 */
-				ttyread();
+				if (n < 256)
+					ttyread();
 				n -= r;
 				s += r;
 			} else {