diff --git a/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh b/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
--- a/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
+++ b/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh
@@ -100,12 +100,12 @@
   mkdir -p ${LIBCXX_BUILD}
   cd ${LIBCXX_BUILD}
   LIBCXX_FLAGS="${FLAGS} -Wno-macro-redefined"
-  PROJECTS=
+  RUNTIMES=
   if [[ ! -d $LLVM_SRC/projects/libcxxabi ]] ; then
-    PROJECTS="-DLLVM_ENABLE_PROJECTS='libcxx;libcxxabi'"
+    RUNTIMES="-DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi'"
   fi
   cmake -GNinja \
-    ${PROJECTS} \
+    ${RUNTIMES} \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_C_COMPILER=$CC \
     -DCMAKE_CXX_COMPILER=$CXX \