diff --git a/.typos.toml b/.typos.toml
index f9a460f..384d27d 100644
--- a/.typos.toml
+++ b/.typos.toml
@@ -71,3 +71,6 @@ MTK = "MTK"
 ODE = "ODE"
 PDE = "PDE"
 SDE = "SDE"
+
+# DASSL/Fortran-specific terms
+yout = "yout"