diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 062236a..802d466 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -45,6 +45,10 @@
 #include <sys/syscall.h>
 #endif
 
+#ifdef __APPLE__
+#include <libproc.h>
+#endif
+
 #ifdef __FreeBSD__
 #include <sys/sysctl.h>
 #include <sys/user.h>
@@ -336,7 +340,11 @@
 {
     char *dir;
     char *p = NULL;
+#if defined(__APPLE__)
+    char buf[PROC_PIDPATHINFO_MAXSIZE];
+#else
     char buf[PATH_MAX];
+#endif
 
     assert(!exec_dir[0]);
 
@@ -349,6 +357,14 @@
             p = buf;
         }
     }
+#elif defined(__APPLE__)
+    {
+        int len;
+        len = proc_pidpath(getpid(), buf, sizeof(buf));
+        if (len > 0) {
+            p = buf;
+        }
+    }
 #elif defined(__FreeBSD__) \
       || (defined(__NetBSD__) && defined(KERN_PROC_PATHNAME))
     {