diff --git a/src/sections/intro.tex b/src/sections/intro.tex
index 8b00229..ab5633b 100644
--- a/src/sections/intro.tex
+++ b/src/sections/intro.tex
@@ -211,7 +211,8 @@ report:
         \item Evaluated in:
           \begin{itemize}
             \item YAML config files
-            \item tum files
+            \item \incode{.tum} files
+            \item compatible with variables expansion
           \end{itemize}
         \item compatible with variables expansion
       \end{itemize}
diff --git a/src/sections/items.tex b/src/sections/items.tex
index c88161f..8cfb9ad 100644
--- a/src/sections/items.tex
+++ b/src/sections/items.tex
@@ -157,7 +157,7 @@
 \begin{frame}[fragile]{\incode{py\_func} test item function call}
   \begin{itemize}
     \item The python file must import helper’s module \incode{py\_func.tm}
-    \item Calls the function exec from a Python class
+    \item Calls the function \incode{exec} from a Python class
     \begin{itemize}
       \item The Python class must be inherited from \incode{tm.FunctionItem}
       \begin{minted}[fontsize=\fontsize{6}{7}\selectfont]{python}