diff --git a/fmmd_data_model/fmmd_data_model.tex b/fmmd_data_model/fmmd_data_model.tex
index c4aa7f2..b82eee7 100644
--- a/fmmd_data_model/fmmd_data_model.tex
+++ b/fmmd_data_model/fmmd_data_model.tex
@@ -115,7 +115,7 @@ type `K' have a de-graded performance
 \footnote{ A real world example of
 degraded performace with temperature is the isolating opto coupler.
 These can typically only cope with lower baud rate ranges
-at high temperatures \cite{tlp181}.}.
+at high temperatures \cite{tlp181}.}
  failure mode between
 ${{80}\oc}$ and ${{125}\oc}$.
 We can term this