diff --git a/dlls/api-ms-win-crt-private-l1-1-0/api-ms-win-crt-private-l1-1-0.spec b/dlls/api-ms-win-crt-private-l1-1-0/api-ms-win-crt-private-l1-1-0.spec
index 06ef550ce05..1e16e5fd547 100644
--- a/dlls/api-ms-win-crt-private-l1-1-0/api-ms-win-crt-private-l1-1-0.spec
+++ b/dlls/api-ms-win-crt-private-l1-1-0/api-ms-win-crt-private-l1-1-0.spec
@@ -1156,7 +1156,7 @@
 @ cdecl memcmp(ptr ptr long) ucrtbase.memcmp
 @ cdecl memcpy(ptr ptr long) ucrtbase.memcpy
 @ cdecl memmove(ptr ptr long) ucrtbase.memmove
-@ stub set_unexpected
+@ cdecl set_unexpected(ptr) ucrtbase.set_unexpected
 @ cdecl -arch=arm,x86_64 -norelay -private setjmp(ptr) ucrtbase.setjmp
 @ cdecl strchr(str long) ucrtbase.strchr
 @ cdecl strrchr(str long) ucrtbase.strrchr
diff --git a/dlls/ucrtbase/ucrtbase.spec b/dlls/ucrtbase/ucrtbase.spec
index 0d6b39729ff..70589900d1f 100644
--- a/dlls/ucrtbase/ucrtbase.spec
+++ b/dlls/ucrtbase/ucrtbase.spec
@@ -2480,7 +2480,7 @@
 @ cdecl scalbnf(float long) MSVCRT__scalbf
 @ cdecl scalbnl(double long) MSVCR120_scalbnl
 @ stub set_terminate
-@ stub set_unexpected
+@ cdecl set_unexpected(ptr) MSVCRT_set_unexpected
 @ cdecl setbuf(ptr ptr) MSVCRT_setbuf
 @ cdecl -arch=arm,x86_64 -norelay -private setjmp(ptr) MSVCRT__setjmp
 @ cdecl setlocale(long str) MSVCRT_setlocale
diff --git a/dlls/vcruntime140/vcruntime140.spec b/dlls/vcruntime140/vcruntime140.spec
index a49e7b91061..a8dc379c1f8 100644
--- a/dlls/vcruntime140/vcruntime140.spec
+++ b/dlls/vcruntime140/vcruntime140.spec
@@ -77,7 +77,7 @@
 @ cdecl memcpy(ptr ptr long) ucrtbase.memcpy
 @ cdecl memmove(ptr ptr long) ucrtbase.memmove
 @ cdecl memset(ptr long long) ucrtbase.memset
-@ stub set_unexpected
+@ cdecl set_unexpected(ptr) ucrtbase.set_unexpected
 @ cdecl strchr(str long) ucrtbase.strchr
 @ cdecl strrchr(str long) ucrtbase.strrchr
 @ cdecl strstr(str str) ucrtbase.strstr