diff --git a/projects/varnish/Dockerfile b/projects/varnish/Dockerfile
index 7bd362ade..5fd0fb49c 100644
--- a/projects/varnish/Dockerfile
+++ b/projects/varnish/Dockerfile
@@ -18,5 +18,4 @@ FROM gcr.io/oss-fuzz-base/base-builder
 RUN apt-get update && apt install -y automake autoconf libtool pkg-config python3-docutils python3-sphinx libedit-dev libpcre2-dev libncurses-dev
 RUN git clone --depth 1 https://github.com/varnishcache/varnish-cache
 COPY build.sh $SRC
-COPY patch.diff $SRC
 WORKDIR $SRC/varnish-cache
diff --git a/projects/varnish/build.sh b/projects/varnish/build.sh
index e7550005b..21eeb7768 100755
--- a/projects/varnish/build.sh
+++ b/projects/varnish/build.sh
@@ -16,12 +16,11 @@
 ################################################################################
 
 
-git apply --ignore-whitespace $SRC/patch.diff
 # build project
 ./autogen.sh
-./configure PCRE2_LIBS=-l:libpcre2-8.a
-make -j$(nproc) -C include/
-make -j$(nproc) -C lib/libvarnish/
-make -j$(nproc) -C lib/libvgz/
-make -j$(nproc) -C bin/varnishd/ VSC_main.c esi_parse_fuzzer
+./configure --enable-oss-fuzz PCRE2_LIBS=-l:libpcre2-8.a
+make -j2 -C include/
+make -j2 -C lib/libvarnish/
+make -j2 -C lib/libvgz/
+make -j2 -C bin/varnishd/ VSC_main.c esi_parse_fuzzer
 cp bin/varnishd/*_fuzzer $OUT/
diff --git a/projects/varnish/patch.diff b/projects/varnish/patch.diff
deleted file mode 100644
index 1d1dc524a..000000000
--- a/projects/varnish/patch.diff
+++ /dev/null
@@ -1,17 +0,0 @@
-diff --git a/bin/varnishd/Makefile.am b/bin/varnishd/Makefile.am
-index ce7145e..18d23b3 100644
---- a/bin/varnishd/Makefile.am
-+++ b/bin/varnishd/Makefile.am
-@@ -208,10 +208,11 @@ esi_parse_fuzzer_SOURCES = \
-        cache/cache_esi_parse.c \
-        fuzzers/esi_parse_fuzzer.c
- esi_parse_fuzzer_CFLAGS = \
--       @SAN_CFLAGS@ -DNOT_IN_A_VMOD -DTEST_DRIVER -include config.h
-+       @SAN_CFLAGS@ -DNOT_IN_A_VMOD -include config.h
- esi_parse_fuzzer_LDADD = \
-        $(top_builddir)/lib/libvarnish/libvarnish.la \
-        $(top_builddir)/lib/libvgz/libvgz.a
-+esi_parse_fuzzer_LDFLAGS = $(LIB_FUZZING_ENGINE)
- 
- TESTS = vhp_table_test vhp_decode_test
- 
diff --git a/projects/varnish/project.yaml b/projects/varnish/project.yaml
index 70c892c0e..d25135569 100644
--- a/projects/varnish/project.yaml
+++ b/projects/varnish/project.yaml
@@ -1,5 +1,5 @@
 homepage: "https://varnish-cache.org/"
-language: c++
+language: c
 primary_contact: "phk@varnish.org"
 auto_ccs:
   - "bsdphk@gmail.com"