diff --git a/projects/openssl/build.sh b/projects/openssl/build.sh
index 0627eb37f..a5adae1bd 100755
--- a/projects/openssl/build.sh
+++ b/projects/openssl/build.sh
@@ -15,7 +15,7 @@
 #
 ################################################################################
 
-./config enable-fuzz-libfuzzer -DPEDANTIC -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION no-shared enable-tls1_3 enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-ssl3 enable-ssl3-method enable-nextprotoneg enable-weak-ssl-ciphers --with-fuzzer-lib=/usr/lib/libFuzzingEngine $CFLAGS -fno-sanitize=alignment
+./config --debug enable-fuzz-libfuzzer -DPEDANTIC -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION no-shared enable-tls1_3 enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-ssl3 enable-ssl3-method enable-nextprotoneg enable-weak-ssl-ciphers --with-fuzzer-lib=/usr/lib/libFuzzingEngine $CFLAGS -fno-sanitize=alignment
 
 make -j$(nproc) LDCMD="clang++ $CXXFLAGS"