diff --git a/src/execution/execution.c b/src/execution/execution.c
index a882397..ec0fe21 100644
--- a/src/execution/execution.c
+++ b/src/execution/execution.c
@@ -116,6 +116,12 @@ static int builtin_cd(char **argv)
     return 0;
 }
 
+/**
+ * @brief Tries to execute a builtin command if the command matches a builtin
+ *
+ * @param argv Array of command arguments
+ * @return int Exit status of the builtin command, or -1 if not a builtin
+ */
 static int try_builtin(char **argv)
 {
     if (!argv || !argv[0])