diff --git a/tools/lint/completion.c b/tools/lint/completion.c
index 59207ca..3c7503e 100644
--- a/tools/lint/completion.c
+++ b/tools/lint/completion.c
@@ -224,7 +224,7 @@
     uint32_t idx;
     const char *start;
     char *end, *module_name = NULL, *path = NULL;
-    const struct lysc_node *parent, *last_node;
+    const struct lysc_node *parent, *last_node = NULL;
     int rc = 0;
     size_t len;