diff --git a/samples/features/security/permissions-posters/Microsoft SQL Server 2017 and Azure SQL Database permissions infographic.pdf b/samples/features/security/permissions-posters/Microsoft_SQL_Server_2017_and_Azure_SQL_Database_permissions_infographic.pdf
similarity index 100%
rename from samples/features/security/permissions-posters/Microsoft SQL Server 2017 and Azure SQL Database permissions infographic.pdf
rename to samples/features/security/permissions-posters/Microsoft_SQL_Server_2017_and_Azure_SQL_Database_permissions_infographic.pdf
diff --git a/samples/features/security/permissions-posters/README.md b/samples/features/security/permissions-posters/README.md
index 51c61a72..b40bfc20 100644
--- a/samples/features/security/permissions-posters/README.md
+++ b/samples/features/security/permissions-posters/README.md
@@ -6,4 +6,4 @@ Useful link: http://social.technet.microsoft.com/wiki/contents/articles/11842.sq
  - [Microsoft SQL Server 2012 Permissions Poster](Permissions_Poster_SQL_Server_2012.pdf)
  - [Microsoft SQL Server 2014 Permissions Poster](Permissions_Poster_SQL_Server_2014.pdf)
  - [Microsoft SQL Server 2016 and SQLDB Permissions Poster](Permissions_Poster_SQL_Server_2016_and_SQLDB.pdf)
- - [Microsoft SQL Server 2017 and SQLDB Permissions Poster](Microsoft SQL Server 2017 and Azure SQL Database permissions infographic.pdf)
+ - [Microsoft SQL Server 2017 and SQLDB Permissions Poster](Microsoft_SQL_Server_2017_and_Azure_SQL_Database_permissions_infographic.pdf)