diff --git a/README.md b/README.md
index 5253209..cb058fd 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ rHAT-aligner:
 
 -r, --gap-extension	INT		gap extension penalty for the alignments in extension phase [1]
 
--t, --threads       INT             number of threads [1]
+-t, --threads       INT     number of threads [1]
 ```
 
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