diff --git a/uni/mmme/1048_thermodynamics_and_fluid_mechanics/fluid_dynamics.md b/uni/mmme/1048_thermodynamics_and_fluid_mechanics/fluid_dynamics.md
index db5d055..7dad0a6 100755
--- a/uni/mmme/1048_thermodynamics_and_fluid_mechanics/fluid_dynamics.md
+++ b/uni/mmme/1048_thermodynamics_and_fluid_mechanics/fluid_dynamics.md
@@ -13,7 +13,7 @@ tags:
 uuid: b88f78f8-a358-460b-9dbb-812e7b1ace92
 ---
 
-\newcommand\Rey{\mbox{\textit{Re}}}
+\newcommand\Rey{\mbox{\text{Re}}}
 \newcommand\textRey{$\Rey$}
 
 # Introductory Concepts