diff --git a/src/os/aix/sigar_os.h b/src/os/aix/sigar_os.h
index 181a3e44..340dfd72 100644
--- a/src/os/aix/sigar_os.h
+++ b/src/os/aix/sigar_os.h
@@ -41,6 +41,7 @@ struct sigar_t {
     struct cpuinfo *cpuinfo;
     int cpuinfo_size;
     char model[128];
+    char self_path[1024]; /* path to where libsigar.so lives */
 };
 
 #define HAVE_STRERROR_R