diff --git a/src/os/osf1/osf1_sigar.c b/src/os/osf1/osf1_sigar.c
index 7171fa6b..ba08f460 100644
--- a/src/os/osf1/osf1_sigar.c
+++ b/src/os/osf1/osf1_sigar.c
@@ -9,6 +9,7 @@ int sigar_os_open(sigar_t **sigar)
 
     (*sigar)->pagesize = getpagesize();
     (*sigar)->boot_time = 0;
+    (*sigar)->mhz = 0;
 
     return SIGAR_OK;
 }
@@ -262,13 +263,23 @@ int sigar_cpu_info_list_get(sigar_t *sigar,
 {
     sigar_cpu_info_t *info;
 
+    if (sigar->mhz == 0) {
+        struct tbl_sysinfo sysinfo;
+    
+        if (table(TBL_SYSINFO, 0, &sysinfo, 1, sizeof(sysinfo)) != 1) {
+            return errno;
+        }
+
+        sigar->mhz = sysinfo.si_hz;
+    }
+
     sigar_cpu_info_list_create(cpu_infos);
 
     info = &cpu_infos->data[cpu_infos->number++];
 
-    SIGAR_SSTRCPY(info->vendor, "vendor");
-    SIGAR_SSTRCPY(info->model, "model");
-    info->mhz = -1;
+    SIGAR_SSTRCPY(info->vendor, "DEC");
+    SIGAR_SSTRCPY(info->model, "alpha");
+    info->mhz = sigar->mhz;
     info->cache_size = -1;
 
     return SIGAR_OK;
diff --git a/src/os/osf1/sigar_os.h b/src/os/osf1/sigar_os.h
index 147a4ede..124d01bb 100644
--- a/src/os/osf1/sigar_os.h
+++ b/src/os/osf1/sigar_os.h
@@ -17,6 +17,7 @@
 struct sigar_t {
     SIGAR_T_BASE;
     int pagesize;
+    int mhz;
 };
 
 #endif /* SIGAR_OS_H */