diff --git a/dlls/msvcr90/msvcr90.spec b/dlls/msvcr90/msvcr90.spec
index 3eae9a0..5e145dd 100644
--- a/dlls/msvcr90/msvcr90.spec
+++ b/dlls/msvcr90/msvcr90.spec
@@ -299,7 +299,7 @@
 @ cdecl _c_exit() msvcrt._c_exit
 @ cdecl _cabs(long) msvcrt._cabs
 @ cdecl _callnewh(long) msvcrt._callnewh
-@ stub _calloc_crt
+@ cdecl _calloc_crt(long long) msvcrt.calloc
 @ cdecl _cexit() msvcrt._cexit
 @ cdecl _cgets(str) msvcrt._cgets
 @ stub _cgets_s