diff --git a/docs/Control Flow.md b/docs/Control_Flow.md similarity index 100% rename from docs/Control Flow.md rename to docs/Control_Flow.md diff --git a/docs/GROUP BY High overview.md b/docs/GROUP_BY_High_overview.md similarity index 100% rename from docs/GROUP BY High overview.md rename to docs/GROUP_BY_High_overview.md diff --git a/docs/How to write MTR tests.md b/docs/How_to_write_MTR_tests.md similarity index 100% rename from docs/How to write MTR tests.md rename to docs/How_to_write_MTR_tests.md diff --git a/docs/Limit and Order By.md b/docs/Limit_and_Order_By.md similarity index 100% rename from docs/Limit and Order By.md rename to docs/Limit_and_Order_By.md diff --git a/docs/SubQueries TBD.md b/docs/SubQueries_TBD.md similarity index 100% rename from docs/SubQueries TBD.md rename to docs/SubQueries_TBD.md diff --git a/docs/mcssystemready and SessionManagerServer flags.md b/docs/mcssystemready_and_SessionManagerServer_flags.md similarity index 100% rename from docs/mcssystemready and SessionManagerServer flags.md rename to docs/mcssystemready_and_SessionManagerServer_flags.md