diff --git a/package/archlinux/PKGBUILD b/package/archlinux/PKGBUILD
index cc96b5b..fb00f32 100644
--- a/package/archlinux/PKGBUILD
+++ b/package/archlinux/PKGBUILD
@@ -23,8 +23,8 @@ build() {
     cmake .. \
         -DCMAKE_BUILD_TYPE=Release \
         -DCMAKE_INSTALL_PREFIX=/usr \
-        -DWITH_PYTHON=ON \
-        -DBUILD_TESTS=ON \
+        -DMAGNUM_WITH_PYTHON=ON \
+        -DMAGNUM_BUILD_TESTS=ON \
         -G Ninja
     ninja
 }
diff --git a/package/archlinux/PKGBUILD-coverage b/package/archlinux/PKGBUILD-coverage
index 32cbbf0..d959cba 100644
--- a/package/archlinux/PKGBUILD-coverage
+++ b/package/archlinux/PKGBUILD-coverage
@@ -24,8 +24,8 @@ build() {
         -DCMAKE_CXX_FLAGS="--coverage" \
         -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_INSTALL_PREFIX=/usr \
-        -DWITH_PYTHON=ON \
-        -DBUILD_TESTS=ON \
+        -DMAGNUM_WITH_PYTHON=ON \
+        -DMAGNUM_BUILD_TESTS=ON \
         -G Ninja
     ninja
 }
diff --git a/package/archlinux/magnum-bindings-git/PKGBUILD b/package/archlinux/magnum-bindings-git/PKGBUILD
index a5338a9..4a6a0d2 100644
--- a/package/archlinux/magnum-bindings-git/PKGBUILD
+++ b/package/archlinux/magnum-bindings-git/PKGBUILD
@@ -25,7 +25,7 @@ build() {
     cmake "$srcdir/${pkgname%-git}" \
         -DCMAKE_BUILD_TYPE=Release \
         -DCMAKE_INSTALL_PREFIX=/usr \
-        -DWITH_PYTHON=ON \
+        -DMAGNUM_WITH_PYTHON=ON \
         -G Ninja
     ninja
 }
diff --git a/package/ci/appveyor-desktop-gles.bat b/package/ci/appveyor-desktop-gles.bat
index 6cec308..efc8c17 100644
--- a/package/ci/appveyor-desktop-gles.bat
+++ b/package/ci/appveyor-desktop-gles.bat
@@ -92,8 +92,8 @@ cmake .. ^
     -DCMAKE_BUILD_TYPE=Release ^
     -DCMAKE_INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%/deps ^
     -DPYBIND11_PYTHON_VERSION=3.6 ^
-    -DWITH_PYTHON=ON ^
-    -DBUILD_TESTS=ON ^
+    -DMAGNUM_WITH_PYTHON=ON ^
+    -DMAGNUM_BUILD_TESTS=ON ^
     -G Ninja || exit /b
 cmake --build . || exit /b
 cmake --build . --target install || exit /b
diff --git a/package/ci/appveyor-desktop.bat b/package/ci/appveyor-desktop.bat
index a7677de..e024cea 100644
--- a/package/ci/appveyor-desktop.bat
+++ b/package/ci/appveyor-desktop.bat
@@ -100,8 +100,8 @@ cmake .. ^
     -DCMAKE_INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%/deps ^
     -DCMAKE_PREFIX_PATH=%APPVEYOR_BUILD_FOLDER%/SDL ^
     -DPYBIND11_PYTHON_VERSION=3.6 ^
-    -DWITH_PYTHON=ON ^
-    -DBUILD_TESTS=ON ^
+    -DMAGNUM_WITH_PYTHON=ON ^
+    -DMAGNUM_BUILD_TESTS=ON ^
     %COMPILER_EXTRA% -G Ninja || exit /b
 cmake --build . || exit /b
 cmake --build . --target install || exit /b
diff --git a/package/ci/unix-desktop-gles.sh b/package/ci/unix-desktop-gles.sh
index 8b6856d..bff7269 100755
--- a/package/ci/unix-desktop-gles.sh
+++ b/package/ci/unix-desktop-gles.sh
@@ -80,8 +80,8 @@ cmake .. \
     -DCMAKE_PREFIX_PATH="$HOME/swiftshader;$HOME/pybind11" \
     -DCMAKE_INSTALL_RPATH="$HOME/deps/lib;$HOME/swiftshader/lib" \
     -DPYBIND11_PYTHON_VERSION=3.6 \
-    -DWITH_PYTHON=ON \
-    -DBUILD_TESTS=ON \
+    -DMAGNUM_WITH_PYTHON=ON \
+    -DMAGNUM_BUILD_TESTS=ON \
     -G Ninja
 ninja $NINJA_JOBS
 
diff --git a/package/ci/unix-desktop.sh b/package/ci/unix-desktop.sh
index c051f66..795fc52 100755
--- a/package/ci/unix-desktop.sh
+++ b/package/ci/unix-desktop.sh
@@ -83,8 +83,8 @@ cmake .. \
     -DCMAKE_BUILD_TYPE=Debug \
     -DCMAKE_PREFIX_PATH=$HOME/pybind11 \
     -DPYBIND11_PYTHON_VERSION=3.6 \
-    -DWITH_PYTHON=ON \
-    -DBUILD_TESTS=ON \
+    -DMAGNUM_WITH_PYTHON=ON \
+    -DMAGNUM_BUILD_TESTS=ON \
     -G Ninja
 ninja $NINJA_JOBS
 
diff --git a/package/homebrew/magnum-bindings.rb b/package/homebrew/magnum-bindings.rb
index 017520c..634fa4a 100644
--- a/package/homebrew/magnum-bindings.rb
+++ b/package/homebrew/magnum-bindings.rb
@@ -21,6 +21,10 @@ class MagnumBindings < Formula
   end
 
   def install
+    # 2020.06 has the options unprefixed, current master has them prefixed.
+    # Options not present in 2020.06 are prefixed always.
+    option_prefix = build.head? ? 'MAGNUM_' : ''
+
     system "mkdir build"
     cd "build" do
       system "cmake",
@@ -30,7 +34,7 @@ class MagnumBindings < Formula
         # of /opt/homebrew/lib which is dedicated for ARM binaries. Please
         # complain to Homebrew about this insane non-obvious filesystem layout.
         "-DCMAKE_INSTALL_NAME_DIR:STRING=#{lib}",
-        "-DWITH_PYTHON=ON",
+        "-D#{option_prefix}WITH_PYTHON=ON",
         ".."
       system "cmake", "--build", "."
       system "cmake", "--build", ".", "--target", "install"