diff --git a/src/Makevars.in b/src/Makevars.in
index b5d7a33..db1bad2 100644
--- a/src/Makevars.in
+++ b/src/Makevars.in
@@ -3,8 +3,9 @@
 ## CXX_STD = CXX11
 
 ## For standard
-PKG_CXXFLAGS =  -I../inst/include/ @OPENMP_FLAG@
-PKG_LIBS = @OPENMP_FLAG@
+PKG_CPPFLAGS =  -I../inst/include/ 
+PKG_CXXFLAGS = @OPENMP_FLAG@
+PKG_LIBS = @OPENMP_FLAG@ 
 
 ## For MKL - make sure you are using icc compiler in ~.R/Makevars 
 # Using GCC -- PREFERRED for MKL
diff --git a/src/PibbleCollapsed_Uncollapse_sigmaKnown.cpp b/src/PibbleCollapsed_Uncollapse_sigmaKnown.cpp
index b4550eb..c583501 100644
--- a/src/PibbleCollapsed_Uncollapse_sigmaKnown.cpp
+++ b/src/PibbleCollapsed_Uncollapse_sigmaKnown.cpp
@@ -120,10 +120,9 @@ List uncollapsePibble_sigmaKnown(const Eigen::Map<Eigen::VectorXd> eta, // note
   #endif 
   #pragma omp parallel shared(D, N, Q, LambdaDraw0)
   {
-  #ifdef FIDO_USE_PARALLEL
-    boost::random::mt19937 rng(omp_get_thread_num()+seed);
-  #else 
     boost::random::mt19937 rng(seed);
+  #ifdef FIDO_USE_PARALLEL
+    rng.discard(omp_get_thread_num()*iter);
   #endif 
   // storage for computation
   MatrixXd LambdaN(D-1, Q);