diff --git a/modules/seq/alg/src/contact_weight_matrix.cc b/modules/seq/alg/src/contact_weight_matrix.cc
index a8a18a5ebbf9d1319eda8995511f4e7f2af59dda..fd1701827a126575ff11d63ce2460969147dd20f 100644
--- a/modules/seq/alg/src/contact_weight_matrix.cc
+++ b/modules/seq/alg/src/contact_weight_matrix.cc
@@ -16,7 +16,6 @@
 // along with this library; if not, write to the Free Software Foundation, Inc.,
 // 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //------------------------------------------------------------------------------
-#include <ost/info/info.hh>
 #include <ost/seq/alg/contact_weight_matrix.hh>
 #include <ost/seq/alg/default_contact_weight_matrix.hh>
 
diff --git a/modules/seq/alg/src/contact_weight_matrix.hh b/modules/seq/alg/src/contact_weight_matrix.hh
index 2f89ece1f82e728cefe11ec9dba55547e71754a5..7039690b7aee677c698bc6c9325fe9e6c22a6e03 100644
--- a/modules/seq/alg/src/contact_weight_matrix.hh
+++ b/modules/seq/alg/src/contact_weight_matrix.hh
@@ -20,6 +20,9 @@
 #define OST_SEQ_CONTACT_WEIGHT_MATRIX_HH
 
 #include <map>
+#include <vector>
+
+#include <ost/base.hh>
 #include <ost/seq/alg/module_config.hh>
 
 /*
diff --git a/modules/seq/alg/src/pair_subst_weight_matrix.cc b/modules/seq/alg/src/pair_subst_weight_matrix.cc
index 4d0216428ba09c9cf1b288957dc0626df335ebe3..2d1f0705b67d4ae5401f8e4846736da0213fdcf9 100644
--- a/modules/seq/alg/src/pair_subst_weight_matrix.cc
+++ b/modules/seq/alg/src/pair_subst_weight_matrix.cc
@@ -16,7 +16,6 @@
 // along with this library; if not, write to the Free Software Foundation, Inc.,
 // 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //------------------------------------------------------------------------------
-#include <ost/info/info.hh>
 #include <ost/seq/alg/pair_subst_weight_matrix.hh>
 #include <ost/seq/alg/default_pair_subst_weight_matrix.hh>
 #include <algorithm>
diff --git a/modules/seq/alg/src/pair_subst_weight_matrix.hh b/modules/seq/alg/src/pair_subst_weight_matrix.hh
index 174dfa4294e8d7a302a7149639a408499e580466..6c0a247aec90a4034d078791763029669e790012 100644
--- a/modules/seq/alg/src/pair_subst_weight_matrix.hh
+++ b/modules/seq/alg/src/pair_subst_weight_matrix.hh
@@ -20,6 +20,9 @@
 #define OST_SEQ_PAIR_SUBST_WEIGHT_MATRIX_HH
 
 #include <map>
+#include <vector>
+
+#include <ost/base.hh>
 #include <ost/seq/alg/module_config.hh>