diff --git a/cawk b/cawk
index 89fa72b..796ea31 100755
--- a/cawk
+++ b/cawk
@@ -115,6 +115,6 @@ if [[ -t 0 ]];then
     repl $PRECISION
 else
     while read; do
-        calc "$REPLY" $PRECISION
+        [[ $REPLY ]] && calc "$REPLY" $PRECISION
     done
 fi