diff --git a/Code/GraphMol/Trajectory/CMakeLists.txt b/Code/GraphMol/Trajectory/CMakeLists.txt
index c5f7ac37e..b5b37e522 100644
--- a/Code/GraphMol/Trajectory/CMakeLists.txt
+++ b/Code/GraphMol/Trajectory/CMakeLists.txt
@@ -7,6 +7,6 @@ rdkit_library(Trajectory Trajectory.cpp
 rdkit_headers(Snapshot.h Trajectory.h DEST GraphMol/Trajectory)
 
 rdkit_test(trajectoryTest trajectoryTest.cpp
-           LINK_LIBRARIES Trajectory RDGeneral RDGeometryLib 
+           LINK_LIBRARIES Trajectory RDGeneral RDGeometryLib
            GraphMol FileParsers
            SmilesParse SubstructMatch ForceFieldHelpers ForceField)
diff --git a/Code/GraphMol/Wrap/CMakeLists.txt b/Code/GraphMol/Wrap/CMakeLists.txt
index 6ac976f36..e8487ad5d 100644
--- a/Code/GraphMol/Wrap/CMakeLists.txt
+++ b/Code/GraphMol/Wrap/CMakeLists.txt
@@ -29,6 +29,9 @@ endif()
 
 if(RDK_BUILD_COMPRESSED_SUPPLIERS)
 find_package(Boost 1.56.0 COMPONENTS iostreams REQUIRED)
+if (NOT Boost_USE_STATIC_LIBS)
+   add_definitions("-DBOOST_IOSTREAMS_DYN_LINK")
+endif()
 set(rdmolfiles_sources rdmolfiles.cpp
                        ForwardSDMolSupplier.cpp ${maesupplier}
                        SDMolSupplier.cpp TDTMolSupplier.cpp
@@ -54,7 +57,7 @@ rdkit_python_extension(rdmolfiles
 rdkit_python_extension(rdtrajectory
                        Trajectory.cpp rdTrajectory.cpp
                        DEST Chem
-                       LINK_LIBRARIES Trajectory RDGeometryLib RDGeneral GraphMol)
+                       LINK_LIBRARIES Trajectory RDGeometryLib RDGeneral RDBoost GraphMol)
 
 if(RDK_BUILD_COMPRESSED_SUPPLIERS)
   set_target_properties(rdmolfiles PROPERTIES DEFINE_SYMBOL SUPPORT_COMPRESSED_SUPPLIERS )