diff --git a/content/zettels/thermoelectric_cooler.md b/content/zettels/thermoelectric_cooler.md
index 7485e0d..a5d66ea 100644
--- a/content/zettels/thermoelectric_cooler.md
+++ b/content/zettels/thermoelectric_cooler.md
@@ -24,7 +24,7 @@ The thermoelectric dynamics is described by 3 phenomena:
 ### The Fourier effect {#the-fourier-effect}
 
 The Fourier effect \\(Q\_f\\) describes the energy transfer through **conduction** between the two sides of the Peltier module:
-\\[ Q\_f^{1 \righarrow 2} = \frac{K\_m \cdot A}{d} (T\_1 - T\_2) \\]
+\\[ Q\_f^{1 \rightarrow 2} = \frac{K\_m \cdot A}{d} (T\_1 - T\_2) \\]
 for conduction from temperature \\(T\_1\\) to \\(T\_2\\) with \\(K\_m\\) the conductivity of the Peltier module in \\(W/m \cdot K\\), \\(A\\) the area in \\(m^2\\) and \\(d\\) the thickness in \\(m\\).