diff --git a/debian/patches/libcxx-D124227-wasm.patch b/debian/patches/libcxx-D124227-wasm.patch
index 9b1b59e2..a09abb77 100644
--- a/debian/patches/libcxx-D124227-wasm.patch
+++ b/debian/patches/libcxx-D124227-wasm.patch
@@ -20,16 +20,16 @@ Differential Revision: https://reviews.llvm.org/D124227
  libcxx/include/__support/solaris/xlocale.h | 55 +++++++++++-----------
  4 files changed, 67 insertions(+), 75 deletions(-)
 
-Index: llvm-toolchain-15_15.0.6~++20230102020141+088f33605d8a/libcxx/include/__support/musl/xlocale.h
+Index: llvm-toolchain-16-16.0.6/libcxx/include/__support/musl/xlocale.h
 ===================================================================
---- llvm-toolchain-15_15.0.6~++20230102020141+088f33605d8a.orig/libcxx/include/__support/musl/xlocale.h
-+++ llvm-toolchain-15_15.0.6~++20230102020141+088f33605d8a/libcxx/include/__support/musl/xlocale.h
-@@ -39,7 +39,7 @@ wcstoll_l(const wchar_t *__nptr, wchar_t
+--- llvm-toolchain-16-16.0.6.orig/libcxx/include/__support/musl/xlocale.h
++++ llvm-toolchain-16-16.0.6/libcxx/include/__support/musl/xlocale.h
+@@ -37,7 +37,7 @@ inline _LIBCPP_HIDE_FROM_ABI_C long long
    return ::wcstoll(__nptr, __endptr, __base);
  }
  
--inline _LIBCPP_HIDE_FROM_ABI long long
-+inline _LIBCPP_HIDE_FROM_ABI unsigned long long
- wcstoull_l(const wchar_t *__nptr, wchar_t **__endptr, int __base, locale_t) {
+-inline _LIBCPP_HIDE_FROM_ABI_C long long wcstoull_l(const wchar_t* __nptr, wchar_t** __endptr, int __base, locale_t) {
++inline _LIBCPP_HIDE_FROM_ABI_C unsigned long long wcstoull_l(const wchar_t* __nptr, wchar_t** __endptr, int __base, locale_t) {
    return ::wcstoull(__nptr, __endptr, __base);
  }
+ 
diff --git a/debian/patches/series b/debian/patches/series
index 60318593..f1f063d2 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -154,3 +154,4 @@ new-cmake-build-fix.patch
 HIP-search-path-fix.patch
 D158066-simd-ppc64el.patch
 #mips64el-ompt.patch
+libcxx-D124227-wasm.patch