diff --git a/chapters/stream.tex b/chapters/stream.tex
index 5ba7b5896..8c444341b 100644
--- a/chapters/stream.tex
+++ b/chapters/stream.tex
@@ -365,7 +365,7 @@ \section{Stream Operator inStream and Connection Equations}\doublelabel{stream-o
 \item
   If all flows are zero,
   \lstinline[mathescape=true]!inStream($m_{i}$.c.h_outflow)! =
-  \lstinline[mathescape=true]!sum($m_{j}$.c.h_outflow for $j \neq i$ and $m_{j}$.c.m_flow.min < 0) / $N_{\mathrm{p}}$!,
+  \lstinline[mathescape=true]!sum($m_{j}$.c.h_outflow for $j \neq{} i$ and $m_{j}$.c.m_flow.min < 0) / $N_{\mathrm{p}}$!,
   i.e., it is the mean value of all the $N_{\mathrm{p}}$ variables
   \lstinline[mathescape=true]!$m_{j}$.c.h_outflow!, such that $j \neq i$ and
   $m_{j}\text{\lstinline!.c.m_flow.min!} < 0$. This is a