diff --git a/Inst_eddies/inst_eddies_Aviso.py b/Inst_eddies/inst_eddies_Aviso.py
index 4ff86b8fd4411796f93fea0039cc6e4c9bb35cbd..4e3b1c926183d57ad633a19b7d68f86c3707a009 100644
--- a/Inst_eddies/inst_eddies_Aviso.py
+++ b/Inst_eddies/inst_eddies_Aviso.py
@@ -2,7 +2,7 @@
 
 """Compared to inst_eddies.py, this script takes as arguments a
 template, a first date and a last date, instead of a list of files. So
-it as adequate when there is a date pattern in file names.
+it is adequate when there is a date pattern in file names.
 
 """