diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cfd21976..85f104fb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -72,7 +72,8 @@ jobs:
           -DSFIZZ_SHARED=OFF \
           -DSFIZZ_STATIC_DEPENDENCIES=OFF \
           -DSFIZZ_LV2=ON \
-          -DCMAKE_CXX_STANDARD=17
+          -DCMAKE_CXX_STANDARD=17 \
+          -DBUILD_SHARED_LIBS=OFF
     - name: Build
       shell: bash
       working-directory: ${{runner.workspace}}/build
@@ -118,7 +119,8 @@ jobs:
       run: |
         mod-plugin-builder /usr/local/bin/cmake "$GITHUB_WORKSPACE" \
          -DSFIZZ_SYSTEM_PROCESSOR=armv7-a \
-         -DCMAKE_BUILD_TYPE=Release -DSFIZZ_JACK=OFF -DSFIZZ_VST=OFF -DSFIZZ_LV2_UI=OFF
+         -DCMAKE_BUILD_TYPE=Release -DSFIZZ_JACK=OFF -DSFIZZ_VST=OFF -DSFIZZ_LV2_UI=OFF \
+         -DBUILD_SHARED_LIBS=OFF
     - name: Build
       shell: bash
       working-directory: ${{runner.workspace}}/build
@@ -187,7 +189,8 @@ jobs:
           -DSFIZZ_JACK=OFF \
           -DSFIZZ_VST=ON \
           -DSFIZZ_STATIC_DEPENDENCIES=ON \
-          -DCMAKE_CXX_STANDARD=17
+          -DCMAKE_CXX_STANDARD=17 \
+          -DBUILD_SHARED_LIBS=OFF
     - name: Build
       shell: bash
       working-directory: ${{runner.workspace}}/build
@@ -256,7 +259,8 @@ jobs:
           -DSFIZZ_JACK=OFF \
           -DSFIZZ_VST=ON \
           -DSFIZZ_STATIC_DEPENDENCIES=ON \
-          -DCMAKE_CXX_STANDARD=17
+          -DCMAKE_CXX_STANDARD=17 \
+          -DBUILD_SHARED_LIBS=OFF
     - name: Build
       shell: bash
       working-directory: ${{runner.workspace}}/build
diff --git a/scripts/appveyor/before_build.cmd b/scripts/appveyor/before_build.cmd
index 0b7804cd..8742946c 100644
--- a/scripts/appveyor/before_build.cmd
+++ b/scripts/appveyor/before_build.cmd
@@ -11,5 +11,6 @@ cmake .. -G"Visual Studio 16 2019" -A"%RELEASE_ARCH%"^
  -DSFIZZ_LV2=ON^
  -DSFIZZ_VST=ON^
  -DCMAKE_BUILD_TYPE=Release^
+ -DBUILD_SHARED_LIBS=OFF^
  -DVCPKG_TARGET_TRIPLET=%VCPKG_TRIPLET%^
  -DCMAKE_TOOLCHAIN_FILE=C:/Tools/vcpkg/scripts/buildsystems/vcpkg.cmake
diff --git a/scripts/appveyor/before_build.sh b/scripts/appveyor/before_build.sh
index 213ab8a3..48e2e70a 100644
--- a/scripts/appveyor/before_build.sh
+++ b/scripts/appveyor/before_build.sh
@@ -10,6 +10,7 @@ cmake -DCMAKE_BUILD_TYPE=Release \
       -DSFIZZ_SHARED=OFF \
       -DSFIZZ_TESTS=ON \
       -DCMAKE_CXX_STANDARD=14 \
+      -DBUILD_SHARED_LIBS=OFF \
       -DLV2PLUGIN_INSTALL_DIR=/ \
       -DVSTPLUGIN_INSTALL_DIR=/ \
       -DAUPLUGIN_INSTALL_DIR=/ \