diff --git a/tools/cmake/cmake-build-aarch64-linux-gnu.sh b/tools/cmake/cmake-build-aarch64-linux-gnu.sh
index 52a2c744b35eb125930e8c3162c5a604b1e71d54..4241168f8255788a07f766b5b9ff5ab888206933 100755
--- a/tools/cmake/cmake-build-aarch64-linux-gnu.sh
+++ b/tools/cmake/cmake-build-aarch64-linux-gnu.sh
@@ -32,5 +32,5 @@ cmake -DCROSSTOOL_ROOT=${LINARO_AARCH64_LINUX_GNU} \
       -DMACE_ENABLE_CODE_MODE=${MACE_ENABLE_CODE_MODE}       \
       -DCMAKE_INSTALL_PREFIX=install      \
       ../../..
-make -j6 VERBOSE=1 && make install
+make -j$(nproc) VERBOSE=1 && make install
 cd ../../..
diff --git a/tools/cmake/cmake-build-arm-linux-gnueabihf.sh b/tools/cmake/cmake-build-arm-linux-gnueabihf.sh
index c0725ff174034bb834f08acf0141ad9872db5f0c..40a879e4312a42050149a5f789b1ae92a2a065d9 100755
--- a/tools/cmake/cmake-build-arm-linux-gnueabihf.sh
+++ b/tools/cmake/cmake-build-arm-linux-gnueabihf.sh
@@ -32,5 +32,5 @@ cmake -DCROSSTOOL_ROOT=${LINARO_ARM_LINUX_GNUEABIHF} \
       -DMACE_ENABLE_CODE_MODE=${MACE_ENABLE_CODE_MODE}        \
       -DCMAKE_INSTALL_PREFIX=install      \
       ../../..
-make -j6 VERBOSE=1 && make install
+make -j$(nproc) VERBOSE=1 && make install
 cd ../../..
diff --git a/tools/cmake/cmake-build-arm64-v8a.sh b/tools/cmake/cmake-build-arm64-v8a.sh
index 2474b7b35a30aeeb45272cdc3d8eaa47e031abcb..18616e39acf700efac3c657d08504067d7e1e4a5 100755
--- a/tools/cmake/cmake-build-arm64-v8a.sh
+++ b/tools/cmake/cmake-build-arm64-v8a.sh
@@ -47,5 +47,5 @@ cmake -DANDROID_ABI="arm64-v8a" \
       -DMACE_ENABLE_RPCMEM=ON                                 \
       -DCMAKE_INSTALL_PREFIX=install      \
       ../../..
-make -j6 VERBOSE=1 && make install
+make -j$(nproc) VERBOSE=1 && make install
 cd ../../..
diff --git a/tools/cmake/cmake-build-armeabi-v7a.sh b/tools/cmake/cmake-build-armeabi-v7a.sh
index b7ae723daf76963a16b24c0daab7b6ca348e02cb..53f8cc25a5d72ea60673b104c5d9e4ca08637a5b 100755
--- a/tools/cmake/cmake-build-armeabi-v7a.sh
+++ b/tools/cmake/cmake-build-armeabi-v7a.sh
@@ -49,5 +49,5 @@ cmake -DANDROID_ABI="armeabi-v7a" \
       -DMACE_ENABLE_RPCMEM=ON                                \
       -DCMAKE_INSTALL_PREFIX=install                         \
       ../../..
-make -j6 VERBOSE=1 && make install
+make -j$(nproc) VERBOSE=1 && make install
 cd ../../..
diff --git a/tools/cmake/cmake-build-host.sh b/tools/cmake/cmake-build-host.sh
index 3902c5e52233d3c664c3852e32d536574da36d9b..ee39b7426bd23e2df7f7c02b0bc1cac3c794fca4 100755
--- a/tools/cmake/cmake-build-host.sh
+++ b/tools/cmake/cmake-build-host.sh
@@ -24,5 +24,5 @@ cmake -DMACE_ENABLE_NEON=OFF         \
       -DMACE_ENABLE_CODE_MODE=${MACE_ENABLE_CODE_MODE}    \
       -DCMAKE_INSTALL_PREFIX=install \
       ../../..
-make -j6 VERBOSE=1 && make install
+make -j$(nproc) VERBOSE=1 && make install
 cd ../../..