diff --git a/src/thermo/ConstCpPoly.h b/include/cantera/thermo/ConstCpPoly.h
similarity index 100%
rename from src/thermo/ConstCpPoly.h
rename to include/cantera/thermo/ConstCpPoly.h
diff --git a/src/thermo/Nasa9PolyMultiTempRegion.h b/include/cantera/thermo/Nasa9PolyMultiTempRegion.h
similarity index 100%
rename from src/thermo/Nasa9PolyMultiTempRegion.h
rename to include/cantera/thermo/Nasa9PolyMultiTempRegion.h
diff --git a/src/thermo/NasaPoly2.h b/include/cantera/thermo/NasaPoly2.h
similarity index 100%
rename from src/thermo/NasaPoly2.h
rename to include/cantera/thermo/NasaPoly2.h
diff --git a/src/thermo/ShomatePoly.h b/include/cantera/thermo/ShomatePoly.h
similarity index 100%
rename from src/thermo/ShomatePoly.h
rename to include/cantera/thermo/ShomatePoly.h
diff --git a/src/thermo/ConstCpPoly.cpp b/src/thermo/ConstCpPoly.cpp
index d91d5a5e0..4de9d3722 100644
--- a/src/thermo/ConstCpPoly.cpp
+++ b/src/thermo/ConstCpPoly.cpp
@@ -6,7 +6,7 @@
  */
 // Copyright 2001  California Institute of Technology
 
-#include "ConstCpPoly.h"
+#include "cantera/thermo/ConstCpPoly.h"
 
 namespace Cantera
 {
diff --git a/src/thermo/GeneralSpeciesThermo.cpp b/src/thermo/GeneralSpeciesThermo.cpp
index 9ea6723de..baa9c0128 100644
--- a/src/thermo/GeneralSpeciesThermo.cpp
+++ b/src/thermo/GeneralSpeciesThermo.cpp
@@ -8,9 +8,9 @@
 
 #include "cantera/thermo/GeneralSpeciesThermo.h"
 #include "cantera/thermo/NasaPoly1.h"
-#include "NasaPoly2.h"
-#include "ShomatePoly.h"
-#include "ConstCpPoly.h"
+#include "cantera/thermo/NasaPoly2.h"
+#include "cantera/thermo/ShomatePoly.h"
+#include "cantera/thermo/ConstCpPoly.h"
 #include "cantera/thermo/Mu0Poly.h"
 #include "cantera/thermo/AdsorbateThermo.h"
 #include "cantera/thermo/SpeciesThermoFactory.h"
diff --git a/src/thermo/Nasa9PolyMultiTempRegion.cpp b/src/thermo/Nasa9PolyMultiTempRegion.cpp
index 19bef3cd8..96e65bfe7 100644
--- a/src/thermo/Nasa9PolyMultiTempRegion.cpp
+++ b/src/thermo/Nasa9PolyMultiTempRegion.cpp
@@ -13,7 +13,7 @@
 // Copyright 2007  Sandia National Laboratories
 
 #include "cantera/base/ctexceptions.h"
-#include "Nasa9PolyMultiTempRegion.h"
+#include "cantera/thermo/Nasa9PolyMultiTempRegion.h"
 
 using namespace std;
 
diff --git a/src/thermo/ShomateThermo.h b/src/thermo/ShomateThermo.h
index f5dcf9e80..4fecbfd8e 100644
--- a/src/thermo/ShomateThermo.h
+++ b/src/thermo/ShomateThermo.h
@@ -11,7 +11,7 @@
 #define CT_SHOMATETHERMO_H
 
 #include "cantera/thermo/SpeciesThermoMgr.h"
-#include "ShomatePoly.h"
+#include "cantera/thermo/ShomatePoly.h"
 #include "cantera/base/global.h"
 #include "cantera/base/utilities.h"
 
diff --git a/src/thermo/SpeciesThermoFactory.cpp b/src/thermo/SpeciesThermoFactory.cpp
index 5d685950a..89ff0ca5d 100644
--- a/src/thermo/SpeciesThermoFactory.cpp
+++ b/src/thermo/SpeciesThermoFactory.cpp
@@ -14,7 +14,7 @@
 #include "cantera/thermo/SimpleThermo.h"
 #include "cantera/thermo/GeneralSpeciesThermo.h"
 #include "cantera/thermo/Mu0Poly.h"
-#include "Nasa9PolyMultiTempRegion.h"
+#include "cantera/thermo/Nasa9PolyMultiTempRegion.h"
 #include "cantera/thermo/Nasa9Poly1.h"
 #include "cantera/thermo/StatMech.h"