diff --git a/src/frontend/inpcom.c b/src/frontend/inpcom.c
index f532a3f63..467379bd0 100644
--- a/src/frontend/inpcom.c
+++ b/src/frontend/inpcom.c
@@ -1296,7 +1296,7 @@ static struct inp_read_t inp_read(FILE* fp, int call_depth, const char* dir_name
         add_to_sourcepath(sourcelineinfo, NULL);
     }
 
-    sourceinfo = wl_cons(sourcelineinfo, sourceinfo);
+    wl_append_word(&sourceinfo, &sourceinfo, sourcelineinfo);
 
     /* First read in all lines & put them in the struct cc */
     for (;;) {