diff --git a/simgear/bucket/newbucket.cxx b/simgear/bucket/newbucket.cxx
index 08ec934a..6ac60fbf 100644
--- a/simgear/bucket/newbucket.cxx
+++ b/simgear/bucket/newbucket.cxx
@@ -24,6 +24,10 @@
  **************************************************************************/
 
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include <math.h>
 
 #include <simgear/misc/sg_path.hxx>
diff --git a/simgear/io/sg_binobj.cxx b/simgear/io/sg_binobj.cxx
index 3b4bdf79..d2da18ef 100644
--- a/simgear/io/sg_binobj.cxx
+++ b/simgear/io/sg_binobj.cxx
@@ -22,6 +22,10 @@
 //
 
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include <simgear/compiler.h>
 
 #include <stdio.h>