diff --git a/uni/mmme/2047_thermodynamics_and_fluid_dynamics/heat_transfer.md b/uni/mmme/2047_thermodynamics_and_fluid_dynamics/heat_transfer.md
index 683f3d1..2bda7e8 100755
--- a/uni/mmme/2047_thermodynamics_and_fluid_dynamics/heat_transfer.md
+++ b/uni/mmme/2047_thermodynamics_and_fluid_dynamics/heat_transfer.md
@@ -32,4 +32,4 @@ $$\dot Q = \frac{T_f-T_w}{\sum R_\text{thermal}}$$
 
 where $R_\text{thermal} = \frac{1}{hA}$.
 
-In a way this analogous to Ohm's law, specifically with resistors in series ($I = \frac{\Deta V}{\sum R_\text{electrical}}$).
+In a way this analogous to Ohm's law, specifically with resistors in series ($I = \frac{\Delta V}{\sum R_\text{electrical}}$).