1 files changed, 1 insertions, 0 deletions
diff --git a/diff.awk b/diff.awk
index c90a0e0..015669a 100644
--- a/diff.awk
+++ b/diff.awk
@@ -4,6 +4,7 @@
 # numerical diff along columns
 
 BEGIN {
+    OFS = FS
     sign = "[+-]?"
     decimal = "[0-9]+[.]?[0-9]*"
     fraction = "[.][0-9]*"