diff --git a/SConscript b/SConscript
index 19f84f9131..6fe99b314e 100644
--- a/SConscript
+++ b/SConscript
@@ -164,6 +164,7 @@ base_sources = Split('''
 	mem/cache/miss/miss_queue.cc
 	mem/cache/miss/mshr.cc
 	mem/cache/miss/mshr_queue.cc
+        mem/cache/miss/prefetcher.cc
 	mem/cache/tags/base_tags.cc
 	mem/cache/tags/cache_tags.cc
 	mem/cache/tags/fa_lru.cc
diff --git a/base/traceflags.py b/base/traceflags.py
index 800c47bd3f..74b87e1b98 100644
--- a/base/traceflags.py
+++ b/base/traceflags.py
@@ -123,7 +123,8 @@ baseFlags = [
     'Uart',
     'Split',
     'SQL',
-    'Thread'
+    'Thread',
+    'HWPrefetch'
     ]
 
 #