diff --git a/cfg/std.cfg b/cfg/std.cfg
index cb7485050..ffeed0884 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -18,7 +18,7 @@
   <function name="fclose">  <noreturn>false</noreturn> </function>
   <function name="fflush">  <noreturn>false</noreturn> <leak-ignore/> </function>
 
-  <function name="isalha">  <noreturn>false</noreturn> <leak-ignore/>  <arg nr="1"><valid>0-255</valid></arg> </function>
+  <function name="isalpha"> <noreturn>false</noreturn> <leak-ignore/>  <arg nr="1"><valid>0-255</valid></arg> </function>
   <function name="isalnum"> <noreturn>false</noreturn> <leak-ignore/>  <arg nr="1"><valid>0-255</valid></arg> </function>
   <function name="iscntrl"> <noreturn>false</noreturn> <leak-ignore/>  <arg nr="1"><valid>0-255</valid></arg> </function>
   <function name="isdigit"> <noreturn>false</noreturn> <leak-ignore/>  <arg nr="1"><valid>0-255</valid></arg> </function>