diff --git a/build.sh b/build.sh
index 86f1d07fe..c414d7405 100755
--- a/build.sh
+++ b/build.sh
@@ -6,7 +6,7 @@
 # Dependencies include: build-essential libncurses5 libncurses-dev cmake zlib1g-dev
 set -e # exit on first error
 
-jobs=4
+jobs=${JOBS:-4}
 
 #########
 # VARs and Links
@@ -224,6 +224,7 @@ mkdir "${BUILD_DIR}"
 cmake -D CMAKE_BUILD_TYPE:STRING="${BUILD_TYPE}" \
     -DSVF_ENABLE_ASSERTIONS:BOOL=true            \
     -DSVF_SANITIZE="${SVF_SANITIZER}"            \
+    ${COMPILE_FLAGS} \
     -S "${SVFHOME}" -B "${BUILD_DIR}"
 cmake --build "${BUILD_DIR}" -j ${jobs}