diff --git a/forking/build.zig b/forking/build.zig
index c5d656a..0df2ecd 100644
--- a/forking/build.zig
+++ b/forking/build.zig
@@ -4,35 +4,17 @@ pub fn build(b: *std.build.Builder) void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
-    {
-        const exe = b.addExecutable(.{
-            .name = "forking-simple",
-            .root_source_file = .{ .path = "simple.c" },
-            .optimize = optimize,
-            .target = target
-        });
-        exe.linkLibC();
+    const exe = b.addExecutable(.{
+        .name = "forking-example",
+        .root_source_file = .{ .path = "main.c" },
+        .optimize = optimize,
+        .target = target
+    });
+    exe.linkLibC();
 
-        const run_cmd = b.addRunArtifact(exe);
-        const run_step = b.step("run", "Run simple program");
-        run_step.dependOn(&run_cmd.step);
+    const run_cmd = b.addRunArtifact(exe);
+    const run_step = b.step("run", "Run simple program");
+    run_step.dependOn(&run_cmd.step);
 
-        b.installArtifact(exe);
-    }
-
-    {
-        const exe = b.addExecutable(.{
-            .name = "forking-mutexes",
-            .root_source_file = .{ .path = "mutexes.c" },
-            .optimize = optimize,
-            .target = target
-        });
-        exe.linkLibC();
-
-        const run_cmd = b.addRunArtifact(exe);
-        const run_step = b.step("run-mutexes", "Run mutexes program");
-        run_step.dependOn(&run_cmd.step);
-
-        b.installArtifact(exe);
-    }
+    b.installArtifact(exe);
 }
diff --git a/forking/mutexes.c b/forking/main.c
similarity index 73%
rename from forking/mutexes.c
rename to forking/main.c
index fe1e6cd..cf36df9 100644
--- a/forking/mutexes.c
+++ b/forking/main.c
@@ -8,15 +8,12 @@
 #include <stdbool.h>
 #include <time.h>
 
-// WARNING: This example does not work, I couldn't figure out why the lock does not work correcly.
-// The final counter result should not change, but it does.
-
 struct shared_data {
   pthread_mutex_t mutex;
   int counter;
 };
 
-void run(const char *name, struct shared_data *data) {
+void increment_counter(const char *name, struct shared_data *data) {
   for (int i = 0; i < 10000; i++) {
     if (pthread_mutex_lock(&data->mutex) != 0) {
       perror("pthread_mutex_lock");
@@ -36,8 +33,11 @@ int main() {
     perror("mmap");
     return -1;
   }
+  pthread_mutexattr_t mutex_attr;
+  pthread_mutexattr_init(&mutex_attr);
+  pthread_mutexattr_setpshared(&mutex_attr, PTHREAD_PROCESS_SHARED);
 
-  if (pthread_mutex_init(&shared_data->mutex, NULL) < 0) {
+  if (pthread_mutex_init(&shared_data->mutex, &mutex_attr) < 0) {
     printf("Failed to initialise mutex\n");
     return -1;
   }
@@ -47,11 +47,11 @@ int main() {
   int pid = fork();
   if (pid == 0) {
     srand(time(NULL)+1);
-    run("Child ", shared_data);
+    increment_counter("Child ", shared_data);
     return 0;
   } else {
     srand(time(NULL)+2);
-    run("Parent", shared_data);
+    increment_counter("Parent", shared_data);
   }
 
   int child_status;
diff --git a/forking/simple.c b/forking/simple.c
deleted file mode 100644
index 7cbe148..0000000
--- a/forking/simple.c
+++ /dev/null
@@ -1,25 +0,0 @@
-#include <string.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-
-int main() {
-  char parent_message[] = "hello";
-  char child_message[] = "goodbye";
-
-  void* shmem = mmap(NULL, 128, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
-
-  memcpy(shmem, parent_message, sizeof(parent_message));
-
-  int pid = fork();
-  if (pid == 0) {
-    printf("Child read: %s\n", (char*)shmem);
-    memcpy(shmem, child_message, sizeof(child_message));
-    printf("Child wrote: %s\n", (char*)shmem);
-  } else {
-    printf("Parent read: %s\n", (char*)shmem);
-    sleep(1);
-    printf("After 1s, parent read: %s\n", (char*)shmem);
-  }
-}