diff --git a/README.md b/README.md
index 10666307a..87c085c33 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,17 @@
  ```
  cmsrel CMSSW_7_1_5
- cd cmsrel CMSSW_7_1_5/src
+ cd CMSSW_7_1_5/src
  cmsenv
  git clone https://github.com/cms-analysis/HiggsAnalysis-CombinedLimit.git HiggsAnalysis/CombinedLimit
  git clone git@github.com:sethzenz/flashggFinalFit.git flashggFinalFit
+ scram b -j 9
+ ```
+
+Two packages need to be built with their own makefiles, if needed.  Please note that there will be verbose warnings from BOOST etc:
+
+ ```
+ cd ${CMSSW_BASE}/src/flashggFinalFit/Background
+ make
+ cd ${CMSSW_BASE}/src/flashggFinalFit/Signal
+ make
  ```