diff --git a/projects/ots/build.sh b/projects/ots/build.sh
index c7750e7a3..cc3cff4ed 100755
--- a/projects/ots/build.sh
+++ b/projects/ots/build.sh
@@ -15,12 +15,12 @@
 #
 ################################################################################
 
-# Build the project.
+# Configure the project.
+export CXXFLAGS="$CXXFLAGS -DOTS_FUZZER_NO_MAIN"
+export LDFLAGS="-lFuzzingEngine"
 meson build
 
 # Build the fuzzer.
-export CXXFLAGS="$CXXFLAGS -DOTS_FUZZER_NO_MAIN"
-export LDFLAGS="-lFuzzingEngine"
 ninja -v -j$(nproc) -C build ots-fuzzer
 mv build/ots-fuzzer $OUT/