diff --git a/ports/alac-decoder/no-pragma-warning.patch b/ports/alac-decoder/no-pragma-warning.patch
new file mode 100644
index 0000000000..97e2960c8b
--- /dev/null
+++ b/ports/alac-decoder/no-pragma-warning.patch
@@ -0,0 +1,14 @@
+diff --git a/alac.c b/alac.c
+index b829e29..8e8805f 100644
+--- a/alac.c
++++ b/alac.c
+@@ -284,7 +284,9 @@ static int count_leading_zeros(int input)
+     return output;
+ }
+ #else
++#if !defined(_MSC_VER)
+ #warning using generic count leading zeroes. You may wish to write one for your CPU / compiler
++#endif
+ static int count_leading_zeros(int input)
+ {
+     int output = 0;
diff --git a/ports/alac-decoder/portfile.cmake b/ports/alac-decoder/portfile.cmake
index 732ed2631e..c1390d7f87 100644
--- a/ports/alac-decoder/portfile.cmake
+++ b/ports/alac-decoder/portfile.cmake
@@ -15,6 +15,7 @@ vcpkg_apply_patches(
     SOURCE_PATH ${SOURCE_PATH}
     PATCHES
         ${CMAKE_CURRENT_LIST_DIR}/remove_stdint_headers.patch
+        ${CMAKE_CURRENT_LIST_DIR}/no-pragma-warning.patch
 )
 
 vcpkg_configure_cmake(