diff --git a/.github/workflows/build_release.yml b/.github/workflows/build_release.yml
index 605fc26..07f332f 100644
--- a/.github/workflows/build_release.yml
+++ b/.github/workflows/build_release.yml
@@ -98,7 +98,7 @@ jobs:
           ./configure \
             --prefix=${BUILD_BASE} \
             --static
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build libzip
@@ -141,7 +141,7 @@ jobs:
             -DBUILD_EXAMPLES=OFF \
             -DBUILD_DOC=OFF
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build libplist
@@ -172,7 +172,7 @@ jobs:
           PACKAGE_VERSION=${LIBIMOBILEDEVICE__GLUE_VERSION} ./autogen.sh \
             ${CONFIGURE_FLAGS}
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build libirecovery
@@ -191,7 +191,7 @@ jobs:
             --without-udev \
             --without-tools
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build wolfssl
@@ -221,7 +221,7 @@ jobs:
               --enable-altcertchains \
               --enable-opensslextra
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build openssl
@@ -251,7 +251,7 @@ jobs:
 
           cd ${BUILD_WORK}/openssl-${OPENSSL_VERSION}
           CC= CXX= AR= RANLIB= ./Configure no-shared no-tests --cross-compile-prefix=${TRIPLE}- --prefix=${BUILD_BASE} --static -static ${PLATFORM}
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2) CC="${CC}" CXX="${CXX}" AR="${AR}" RANLIB="${RANLIB}"
+          make -j$(nproc) -l$(nproc) CC="${CC}" CXX="${CXX}" AR="${AR}" RANLIB="${RANLIB}"
           make install_sw DESTDIR="${ROOT}"
 
       - name: build tiny-curl
@@ -286,7 +286,7 @@ jobs:
             --enable-libcurl-option \
             ${CURL_FLAGS}
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: (not) build libgeneral
@@ -320,7 +320,7 @@ jobs:
           ./autogen.sh \
             ${CONFIGURE_FLAGS}
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2)
+          make -j$(nproc) -l$(nproc)
           make install
 
       - name: build tsschecker
@@ -342,7 +342,7 @@ jobs:
             --without-libcrypto \
             ${TSSCHECKER_FLAGS}
 
-          make -j$(expr $(nproc) / 2) -l$(expr $(nproc) / 2) \
+          make -j$(nproc) -l$(nproc) \
             LDFLAGS="-all-static -static ${LDFLAGS}"
           ${TRIPLE}-strip tsschecker/tsschecker${EXE_SUFFIX}