diff --git a/dlls/api-ms-win-crt-locale-l1-1-0/api-ms-win-crt-locale-l1-1-0.spec b/dlls/api-ms-win-crt-locale-l1-1-0/api-ms-win-crt-locale-l1-1-0.spec
index 60c588b712d..12bbbe6133c 100644
--- a/dlls/api-ms-win-crt-locale-l1-1-0/api-ms-win-crt-locale-l1-1-0.spec
+++ b/dlls/api-ms-win-crt-locale-l1-1-0/api-ms-win-crt-locale-l1-1-0.spec
@@ -3,7 +3,7 @@
 @ cdecl ___lc_locale_name_func() ucrtbase.___lc_locale_name_func
 @ cdecl ___mb_cur_max_func() ucrtbase.___mb_cur_max_func
 @ cdecl ___mb_cur_max_l_func(ptr) ucrtbase.___mb_cur_max_l_func
-@ stub __initialize_lconv_for_unsigned_char
+@ cdecl __initialize_lconv_for_unsigned_char() ucrtbase.__initialize_lconv_for_unsigned_char
 @ cdecl __pctype_func() ucrtbase.__pctype_func
 @ stub __pwctype_func
 @ cdecl _configthreadlocale(long) ucrtbase._configthreadlocale
diff --git a/dlls/ucrtbase/ucrtbase.spec b/dlls/ucrtbase/ucrtbase.spec
index 2f733c3118d..4bcd12ea972 100644
--- a/dlls/ucrtbase/ucrtbase.spec
+++ b/dlls/ucrtbase/ucrtbase.spec
@@ -91,7 +91,7 @@
 @ cdecl __dstbias() MSVCRT___p__dstbias
 @ cdecl __fpe_flt_rounds()
 @ cdecl __fpecode()
-@ stub __initialize_lconv_for_unsigned_char
+@ cdecl __initialize_lconv_for_unsigned_char() __lconv_init
 @ stub __intrinsic_abnormal_termination
 @ cdecl -arch=i386,x86_64,arm -norelay __intrinsic_setjmp(ptr) MSVCRT__setjmp
 @ stub __intrinsic_setjmpex