diff --git a/repos/mml/src/app/blinktree/benchmark/perf.h b/repos/mml/src/app/blinktree/benchmark/perf.h
index 9925d5f964..544a675fad 100644
--- a/repos/mml/src/app/blinktree/benchmark/perf.h
+++ b/repos/mml/src/app/blinktree/benchmark/perf.h
@@ -1,8 +1,8 @@
 #pragma once
 #include <algorithm>
-//#include <asm/unistd.h>
+#include <asm/unistd.h>
 #include <cstring>
-//#include <linux/perf_event.h> // TODO: Find Genode equivalent
+#include <linux/perf_event.h> // TODO: Find Genode equivalent
 #include <string>
 #include <sys/ioctl.h>
 #include <unistd.h>
diff --git a/repos/mml/src/app/blinktree/target.mk b/repos/mml/src/app/blinktree/target.mk
index 8eec378e7c..f0f33c5d85 100644
--- a/repos/mml/src/app/blinktree/target.mk
+++ b/repos/mml/src/app/blinktree/target.mk
@@ -5,7 +5,7 @@ TARGET = blinktree
 SRC_MXBENCH = benchmark/workload_set.cpp
 SRC_MXBENCH += benchmark/workload.cpp
 SRC_MXBENCH += benchmark/cores.cpp
-#SRC_MXBENCH += benchmark/perf.cpp
+SRC_MXBENCH += benchmark/perf.cpp
 SRC_MXBENCH += benchmark/string_util.cpp
 # source files for blinktree benchmark
 SRC_BTREE += blinktree_benchmark/main.cpp