diff --git a/lib/krb5/expand_path.c b/lib/krb5/expand_path.c
index c8a48847d..b8e5049a0 100644
--- a/lib/krb5/expand_path.c
+++ b/lib/krb5/expand_path.c
@@ -279,8 +279,9 @@ _expand_temp_folder(krb5_context context, PTYPE param, const char *postfix, char
 {
     const char *p = NULL;
 
-    if (issuid())
+    if (!issuid())
 	p = getenv("TEMP");
+
     if (p)
 	*ret = strdup(p);
     else