diff --git a/fuzz/oss-fuzz-build b/fuzz/oss-fuzz-build
index ae03292..f1a252d 100755
--- a/fuzz/oss-fuzz-build
+++ b/fuzz/oss-fuzz-build
@@ -23,7 +23,7 @@ fi
 
 env CMAKE_PREFIX_PATH=$WORK LDFLAGS="-L$WORK/lib -lpthread" \
     cmake -S . -B build \
-    -DOSS_FUZZ=1 -DBUILD_SHARED_LIBS=0 -DCMAKE_BUILD_TYPE=Debug \
-    -DUSE_IMPLICIT_CRYPTO=0 -DREQUIRE_CRYPTO_NATIVE=1
+    -DOSS_FUZZ=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_BUILD_TYPE=Debug \
+    -DUSE_IMPLICIT_CRYPTO=OFF -DREQUIRE_CRYPTO_NATIVE=ON
 cmake --build build -j$(nproc) --target fuzzers
 cmake --install build --component fuzz