diff --git a/targets/c-ares/build.sh b/targets/c-ares/build.sh
index ce0a7d912..89e7b7e7d 100755
--- a/targets/c-ares/build.sh
+++ b/targets/c-ares/build.sh
@@ -23,7 +23,7 @@ export LDFLAGS="$FUZZER_LDFLAGS"
 ./buildconf
 ./configure
 make clean
-make -j$(nproc) all
+make CFLAGS= -j$(nproc) all
 
 # Build the fuzzer.
 $CXX $CXXFLAGS -std=c++11 -I. \