diff --git a/envsetup.sh b/envsetup.sh
index 61c1e7f..e280691 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -146,6 +146,10 @@
     unset ANDROID_HOST_OUT
     export ANDROID_HOST_OUT=$(get_abs_build_var HOST_OUT)
 
+    # needed for processing samples collected by perf counters
+    unset OPROFILE_EVENTS_DIR
+    export OPROFILE_EVENTS_DIR=$T/external/oprofile/events
+
     # needed for building linux on MacOS
     # TODO: fix the path
     #export HOST_EXTRACFLAGS="-I "$T/system/kernel_headers/host_include