diff --git a/projects/bignum-fuzzer/Dockerfile b/projects/bignum-fuzzer/Dockerfile
index 6ce2c8d19..bd504a0e1 100644
--- a/projects/bignum-fuzzer/Dockerfile
+++ b/projects/bignum-fuzzer/Dockerfile
@@ -16,7 +16,7 @@
 
 FROM gcr.io/oss-fuzz-base/base-builder
 MAINTAINER guidovranken@gmail.com
-RUN apt-get update && apt-get install -y software-properties-common python-software-properties wget curl sudo libboost-all-dev
+RUN apt-get update && apt-get install -y software-properties-common python-software-properties wget curl sudo mercurial autoconf bison texinfo libboost-all-dev
 RUN add-apt-repository -y ppa:gophers/archive && apt-get update && apt-get install -y golang-1.9-go
 RUN ln -s /usr/lib/go-1.9/bin/go /usr/bin/go
 
@@ -25,4 +25,5 @@ RUN curl -s https://static.rust-lang.org/rustup.sh | sh -s -- --channel=nightly
 
 RUN git clone --depth 1 https://github.com/guidovranken/bignum-fuzzer
 RUN git clone --depth 1 https://github.com/openssl/openssl
+RUN hg clone https://gmplib.org/repo/gmp/ libgmp/
 COPY build.sh $SRC/
diff --git a/projects/bignum-fuzzer/build.sh b/projects/bignum-fuzzer/build.sh
index a0e0a5258..5f2ae008e 100755
--- a/projects/bignum-fuzzer/build.sh
+++ b/projects/bignum-fuzzer/build.sh
@@ -6,6 +6,12 @@ fi
 ./config
 make -j$(nproc)
 
+# Build libgmp
+cd $SRC/libgmp
+autoreconf -ivf
+./configure --enable-maintainer-mode
+make -j$(nproc)
+
 # Build OpenSSL module
 cd $SRC/bignum-fuzzer/modules/openssl
 OPENSSL_INCLUDE_PATH=$SRC/openssl/include OPENSSL_LIBCRYPTO_A_PATH=$SRC/openssl/libcrypto.a make
@@ -22,6 +28,10 @@ make
 cd $SRC/bignum-fuzzer/modules/cpp_boost
 make
 
+# Build libgmp module
+cd $SRC/bignum-fuzzer/modules/libgmp
+LIBGMP_INCLUDE_PATH=$SRC/libgmp LIBGMP_A_PATH=$SRC/libgmp/.libs/libgmp.a make
+
 BASE_CXXFLAGS=$CXXFLAGS
 
 # Build OpenSSL/Go fuzzer
@@ -53,7 +63,18 @@ LIBFUZZER_LINK="-lFuzzingEngine" make
 # Copy OpenSSL/C++-Boost fuzzer to the designated location
 cp $SRC/bignum-fuzzer/fuzzer $OUT/fuzzer_openssl_cpp_boost_num_len_1200_all_operations_num_loops_1
 
+# Build OpenSSL/libgmp fuzzer
+cd $SRC/bignum-fuzzer
+make clean
+./config-modules.sh openssl libgmp
+CXXFLAGS="$BASE_CXXFLAGS -DBNFUZZ_FLAG_NUM_LEN=1200 -DBNFUZZ_FLAG_ALL_OPERATIONS=1 -DBNFUZZ_FLAG_NUM_LOOPS=1"
+LIBFUZZER_LINK="-lFuzzingEngine" make
+
+# Copy OpenSSL/libgmp fuzzer to the designated location
+cp $SRC/bignum-fuzzer/fuzzer $OUT/fuzzer_openssl_libgmp_num_len_1200_all_operations_num_loops_1
+
 # Copy seed corpora to the designated location
 cp $SRC/bignum-fuzzer/corpora/fuzzer_openssl_go_no_negative_num_len_1200_all_operations_seed_corpus.zip $OUT
 cp $SRC/bignum-fuzzer/corpora/fuzzer_openssl_rust_num_len_1200_all_operations_num_loops_1_seed_corpus.zip $OUT
 cp $SRC/bignum-fuzzer/corpora/fuzzer_openssl_cpp_boost_num_len_1200_all_operations_num_loops_1_seed_corpus.zip $OUT
+cp $SRC/bignum-fuzzer/corpora/fuzzer_openssl_libgmp_num_len_1200_all_operations_num_loops_1_seed_corpus.zip $OUT