diff --git a/parts/theory.tex b/parts/theory.tex
index 38f584e..8475547 100644
--- a/parts/theory.tex
+++ b/parts/theory.tex
@@ -50,7 +50,7 @@ In case of the current measurement circuit we require the following:
 Here we use the same Amplifiers and so we can use the following equation for our input current:
 \begin{align}
     I_\text{48V IN}\cdot R_\text{shunt} \cdot r_\text{diffOpAmp} \cdot r_\text{OpAmp} = V_\text{48I pin}\nonumber\\
-    \Leftrightarrow\qud \frac{V_\text{48I pin}}{R_\text{shunt}} \cdot \frac{1}{r_\text{diffOpAmp}\cdot r_\text{OpAmp}} = I_\text{48V IN}
+    \Leftrightarrow\quad \frac{V_\text{48I pin}}{R_\text{shunt}} \cdot \frac{1}{r_\text{diffOpAmp}\cdot r_\text{OpAmp}} = I_\text{48V IN}
 \end{align}
 
 \subsection{9.6V Output Voltage}