diff --git a/src/userfunc.c b/src/userfunc.c
index 76cfd44..b9093a0 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -7247,7 +7247,7 @@
     char_u	*varname;
 
     if (current_funccal == NULL || current_funccal->fc_func->uf_scoped == NULL)
-      return NULL;
+	return NULL;
 
     // Search in parent scope, which can be referenced from a lambda.
     current_funccal = current_funccal->fc_func->uf_scoped;