diff --git a/build.sh b/build.sh
index a354c4a..24d073d 100755
--- a/build.sh
+++ b/build.sh
@@ -3,6 +3,8 @@
 set -e
 set -o pipefail
 
+RELEASE_TYPE="Release"
+
 UNAME=$(uname -s)
 PLATFORM=$(uname -m)
 if [[ ${UNAME} == *"MINGW"* ]]; then
@@ -27,26 +29,26 @@ base_dir=${PWD}
 
 mkdir -p "${base_dir}/mupen64plus-core/build"
 cd "${base_dir}/mupen64plus-core/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp ./*mupen64plus"${suffix}" "${install_dir}"
 cp "${base_dir}/mupen64plus-core/data/"* "${install_dir}"
 
 mkdir -p "${base_dir}/simple64-input-raphnetraw/build"
 cd "${base_dir}/simple64-input-raphnetraw/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp simple64-input-raphnetraw.* "${install_dir}"
 
 mkdir -p "${base_dir}/simple64-input-qt/build"
 cd "${base_dir}/simple64-input-qt/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp simple64-input-qt.* "${install_dir}"
 
 mkdir -p "${base_dir}/simple64-audio-sdl2/build"
 cd "${base_dir}/simple64-audio-sdl2/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp simple64-audio-sdl2.* "${install_dir}"
 
@@ -68,7 +70,7 @@ fi
 
 mkdir -p "${base_dir}/simple64-gui/build"
 cd "${base_dir}/simple64-gui/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 
 if [[ ${UNAME} == *"Darwin"* ]]; then
@@ -80,13 +82,13 @@ fi
 
 mkdir -p "${base_dir}/parallel-rsp/build"
 cd "${base_dir}/parallel-rsp/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp simple64-rsp-parallel.* "${install_dir}"
 
 mkdir -p "${base_dir}/parallel-rdp-standalone/build"
 cd "${base_dir}/parallel-rdp-standalone/build"
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
+cmake -G Ninja -DCMAKE_BUILD_TYPE="${RELEASE_TYPE}" ..
 VERBOSE=1 cmake --build .
 cp simple64-video-parallel.* "${install_dir}"