1 files changed, 1 insertions, 0 deletions
diff --git a/src/nvim/main.c b/src/nvim/main.c
index a4ed868af1..23cea3e592 100644
--- a/src/nvim/main.c
+++ b/src/nvim/main.c
@@ -1849,6 +1849,7 @@ static void source_startup_scripts(const mparm_T *const parmp)
 /// @return FAIL if the environment variable was not executed,
 ///         OK otherwise.
 static int process_env(char *env, bool is_viminit)
+  FUNC_ATTR_NONNULL_ALL
 {
   const char *initstr = os_getenv(env);
   if (initstr != NULL) {