diff --git a/docs/source/overview.rst b/docs/source/overview.rst
index 6c56657..393ddd6 100644
--- a/docs/source/overview.rst
+++ b/docs/source/overview.rst
@@ -23,10 +23,10 @@ Modbus supports the following 3 communication-link layers:
      - TCP/IP using standard port 502.
    * - UDP
      - UDP/IP using standard port 502. The use of UDP/IP is not part of the MODBUS
-     - standard but is useful for FPGAs with Ethernet in firmware which may provide
-     - support only for UDP.  The only difference between TCP and UDP operation is
-     - that when using UDP a missing reply packet is not considered to
-     - be an error until the transaction has been attempted 5 times.
+       standard but is useful for FPGAs with Ethernet in firmware which may provide
+       support only for UDP.  The only difference between TCP and UDP operation is
+       that when using UDP a missing reply packet is not considered to
+       be an error until the transaction has been attempted 5 times.
    * - RTU
      - RTU is normally run over serial communication links, i.e. RS-232,
        RS-422, or RS-485. RTU uses an additional CRC for packet checking. The