diff --git a/src/vim9compile.c b/src/vim9compile.c
index d37c5c9..fdb422b 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -2339,6 +2339,9 @@
     scriptitem_T    *si = SCRIPT_ITEM(current_sctx.sc_sid);
     int		    idx;
 
+    if (current_sctx.sc_sid <= 0)
+	return NULL;
+    si = SCRIPT_ITEM(current_sctx.sc_sid);
     if (cctx != NULL)
 	for (idx = 0; idx < cctx->ctx_imports.ga_len; ++idx)
 	{