diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e33a905..1b2e033 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -102,6 +102,13 @@ jobs:
         Invoke-WebRequest https://xiv.zone/distrib/dependencies/icoutils.zip -OutFile icoutils.zip
         unzip icoutils.zip -d ${{ steps.strings.outputs.prefix-dir }}
 
+    - name: Build zlib
+      if: (runner.os == 'Windows') && (steps.cache-prefix-restore.outputs.cache-hit != 'true')
+      run: |
+        git clone https://github.com/madler/zlib.git
+        cmake -B ${{ steps.strings.outputs.build-output-dir }}-zlib -DCMAKE_PREFIX_PATH=${{ steps.strings.outputs.prefix-dir }} -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }} -DCMAKE_C_COMPILER=${{ matrix.c_compiler }} -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -S zlib -DCMAKE_INSTALL_PREFIX=${{ steps.strings.outputs.prefix-dir }} -DBUILD_TESTING=OFF
+        cmake --build ${{ steps.strings.outputs.build-output-dir }}-zlib --config ${{ matrix.build_type }} --target install
+
     - name: Build Extra CMake Modules
       if: steps.cache-prefix-restore.outputs.cache-hit != 'true'
       run: |
@@ -308,6 +315,7 @@ jobs:
         Copy-Item -Path ${{ steps.strings.outputs.prefix-dir }}/bin/intl-8.dll -Destination ${{ steps.strings.outputs.build-output-dir }}/bin/bin
         Copy-Item -Path ${{ steps.strings.outputs.prefix-dir }}/bin/KF6IconThemes.dll -Destination ${{ steps.strings.outputs.build-output-dir }}/bin/bin
         Copy-Item -Path ${{ steps.strings.outputs.prefix-dir }}/bin/iconv.dll -Destination ${{ steps.strings.outputs.build-output-dir }}/bin/bin
+        Copy-Item -Path ${{ steps.strings.outputs.prefix-dir }}/bin/zlib.dll -Destination ${{ steps.strings.outputs.build-output-dir }}/bin/bin
 
     - name: Remove extra files
       if: runner.os == 'Windows'