diff --git a/target-m68k/cpu.c b/target-m68k/cpu.c
index b231d9ad38..e6df1eef58 100644
--- a/target-m68k/cpu.c
+++ b/target-m68k/cpu.c
@@ -64,7 +64,8 @@ static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model)
     }
 
     oc = object_class_by_name(cpu_model);
-    if (oc != NULL && object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL) {
+    if (oc != NULL && (object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL ||
+                       object_class_is_abstract(oc))) {
         return NULL;
     }
     return oc;