diff --git a/src/README b/src/README
index 1544d807..eb50a940 100644
--- a/src/README
+++ b/src/README
@@ -36,9 +36,12 @@ musrfit is the first program in a series to be written which will be a full repl
 Build Instructions:
 -------------------
 
+In order to get musrfit compiled, you need first to build the shared library libPMusr.so. In order to do so, please follow the instruction given in the file classes/BUILD.
+
 make -f Makefile.musrfit
 make -f Makefile.musrfit install
 
+
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