diff --git a/Dockerfile b/Dockerfile
index 7ac41fe..63e10ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,6 +14,7 @@ WORKDIR /build
 COPY lighttpd/lighttpd-source /build/lighttpd/lighttpd-source
 
 RUN cd /build/lighttpd/lighttpd-source \
+   && sed -e s/AM_C_PROTOTYPES/AC_C_PROTOTYPES/g -i configure.in \
    && ./autogen.sh \
    && CFLAGS=-g ./configure --without-bzip2 --without-pcre --without-zlib --build=x86_64-unknown-linux-gnu \
    && CFLAGS=-g make \
@@ -25,6 +26,6 @@ RUN apt-get update && apt-get install -y  --no-install-recommends libc6-dbg
 COPY mayhem/testsuite /testsuite
 COPY --from=builder1 /mayhemit /mayhemit
 COPY --from=builder2 /usr/local /usr/local
-RUN mkdir /www && echo "lighttpd 1.4.52 running!" > /www/index.html
+RUN mkdir /www && echo "lighttpd 1.4.15 running!" > /www/index.html
 CMD ["/usr/local/sbin/lighttpd","-D", "-f","/usr/local/etc/lighttpd.conf"]
 EXPOSE 80
diff --git a/lighttpd/lighttpd-source b/lighttpd/lighttpd-source
index 06ebbc3..310b2aa 160000
--- a/lighttpd/lighttpd-source
+++ b/lighttpd/lighttpd-source
@@ -1 +1 @@
-Subproject commit 06ebbc3ed491244ee3285988b0bc7275a0a47131
+Subproject commit 310b2aa13e69ade5cf81f867b9ec0021261c7477
diff --git a/mayhemit-c/mayhemit.c b/mayhemit-c/mayhemit.c
index 25e4654..a2b0bf4 100644
--- a/mayhemit-c/mayhemit.c
+++ b/mayhemit-c/mayhemit.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <string.h>
+#include <signal.h>
 
 int mayhemit(char *buf)
 {
@@ -8,7 +9,7 @@ int mayhemit(char *buf)
       if(buf[1] == 'u')
         if(buf[2] == 'g') {
           printf("You've got it!");
-          // abort();
+          raise(SIGABRT);
         }
     return 0;
 }