diff --git a/Manuals/FDS_Technical_Reference_Guide/Solid_Chapter.tex b/Manuals/FDS_Technical_Reference_Guide/Solid_Chapter.tex
index 07dbbf5ce5..2a2a51c948 100644
--- a/Manuals/FDS_Technical_Reference_Guide/Solid_Chapter.tex
+++ b/Manuals/FDS_Technical_Reference_Guide/Solid_Chapter.tex
@@ -17,8 +17,7 @@ \section{The Heat Conduction Equation for a Solid}
   \left(r \, k_{\rm s} \dod{T_{\rm s}}{r} \right)+\dq_{\rm s}'''
   \quad ; \quad
   \rho_{\rm s} c_{\rm s} \; \dod{T_{\rm s}}{t} = \frac{1}{r^2} \, \dod{}{r}
-  \left(r^2 \, k_{\rm s} \dod{T_{\rm s}}{r} \right)+\dq_{\rm s}'''
-  \label{1dheatcyl}
+  \left(r^2 \, k_{\rm s} \dod{T_{\rm s}}{r} \right)+\dq_{\rm s}''' \nonumber
 \ee
 FDS offers the user these options for cases where the obstruction surface is not flat, but rather cylindrical or spherical in shape. This option is useful in describing the behavior of small, complicated ``targets'' like cables or heat detection devices.}
 \be