diff --git a/docs/source/manual/openfpga_shell/openfpga_commands/setup_commands.rst b/docs/source/manual/openfpga_shell/openfpga_commands/setup_commands.rst
index ed7f594d6f..9a7dc6e863 100644
--- a/docs/source/manual/openfpga_shell/openfpga_commands/setup_commands.rst
+++ b/docs/source/manual/openfpga_shell/openfpga_commands/setup_commands.rst
@@ -464,6 +464,8 @@ pcf2place
   .. option:: --reduce_error_to_warning
 
     Reduce error to warning while reading commands in pcf file
+  
+  .. warning:: Exercise extreme caution when adding this option – be sure you completely understand why the issue is being flagged, and why it is OK to treat as a warning instead of an error.
 
   .. option:: --verbose