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-rw-r--r--Src/utils.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Src/utils.c b/Src/utils.c
index 6671c62d9..5e9fbfb82 100644
--- a/Src/utils.c
+++ b/Src/utils.c
@@ -1793,7 +1793,7 @@ zjoin(char **arr, int delim, int heap)
     for (s = arr; *s; s++)
 	len += strlen(*s) + 1;
     if (!len)
-	return "";
+	return heap? "" : ztrdup("");
     ptr = ret = (heap ? (char *) hcalloc(len) : (char *) zcalloc(len));
     for (s = arr; *s; s++) {
 	strucpy(&ptr, *s);