diff --git a/dtool/src/cppparser/cppMakeProperty.h b/dtool/src/cppparser/cppMakeProperty.h
index 816f9d4958..8fecfc071c 100644
--- a/dtool/src/cppparser/cppMakeProperty.h
+++ b/dtool/src/cppparser/cppMakeProperty.h
@@ -18,6 +18,7 @@
 #include "dtoolbase.h"
 
 #include "cppDeclaration.h"
+#include "cppIdentifier.h"
 
 ///////////////////////////////////////////////////////////////////
 //       Class : CPPMakeProperty
diff --git a/dtool/src/interrogatedb/interrogateElement.cxx b/dtool/src/interrogatedb/interrogateElement.cxx
index 1c74a208d6..8dff1f4251 100644
--- a/dtool/src/interrogatedb/interrogateElement.cxx
+++ b/dtool/src/interrogatedb/interrogateElement.cxx
@@ -13,6 +13,7 @@
 ////////////////////////////////////////////////////////////////////
 
 #include "interrogateElement.h"
+#include "interrogateDatabase.h"
 #include "indexRemapper.h"
 #include "interrogate_datafile.h"