diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index 6e2dccc41..279bf4662 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -456,7 +456,6 @@
     <returnValue type="int"/>
     <noreturn>false</noreturn>
     <arg nr="1" direction="in">
-      <valid>0:</valid>
       <not-uninit/>
     </arg>
     <arg nr="2" direction="in">
@@ -969,7 +968,6 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <leak-ignore/>
     <arg nr="1" direction="in">
       <not-uninit/>
-      <valid>0:</valid>
     </arg>
     <arg nr="2" direction="in">
       <not-null/>