diff --git a/src/sigar_util.c b/src/sigar_util.c
index 903ec51a..9c283bef 100644
--- a/src/sigar_util.c
+++ b/src/sigar_util.c
@@ -296,6 +296,8 @@ static const cpu_model_str_t cpu_models[] = {
     CPU_MODEL_ENT("Opteron"),
     CPU_MODEL_ENT("Athlon"),
     CPU_MODEL_ENT("Duron"),
+    CPU_MODEL_ENT_R("K6(tm)-III", "K6 III"),
+    CPU_MODEL_ENT_R("K6(tm) 3D+", "K6 3D+"),
     { NULL }
 };
 
@@ -323,6 +325,10 @@ void sigar_cpu_model_adjust(sigar_t *sigar, sigar_cpu_info_t *info)
         while (*ptr == ' ') ++ptr;
     }
 
+    if (*ptr == '-') {
+        ++ptr; /* e.g. was AMD-K6... */
+    }
+
     for (i=0; cpu_models[i].name; i++) {
         const cpu_model_str_t *cpu_model = &cpu_models[i];