diff --git a/mozilla/modules/plugin/tools/sdk/Makefile.in b/mozilla/modules/plugin/tools/sdk/Makefile.in
index 6accff793ad..c754d190d69 100644
--- a/mozilla/modules/plugin/tools/sdk/Makefile.in
+++ b/mozilla/modules/plugin/tools/sdk/Makefile.in
@@ -28,8 +28,8 @@ libs::
 	$(INSTALL) $(XPDIST)/idl/nsISupports.idl ./idl
 	$(INSTALL) $(XPDIST)/idl/nsrootidl.idl ./idl
 
-	$(INSTALL) $(XPDIST)/include/npapi.h ./include
-	$(INSTALL) $(XPDIST)/include/npupp.h ./include
+	$(INSTALL) $(XPDIST)/include/plugin/npapi.h ./include
+	$(INSTALL) $(XPDIST)/include/plugin/npupp.h ./include
 
 	$(MAKE_INSTALL) $(XPDIST)\include\java\jni.h .\include
 	$(MAKE_INSTALL) $(XPDIST)\include\java\jni_md.h .\include
diff --git a/mozilla/modules/plugin/tools/sdk/makefile.win b/mozilla/modules/plugin/tools/sdk/makefile.win
index d00e7c869b2..7b1ab36f75b 100644
--- a/mozilla/modules/plugin/tools/sdk/makefile.win
+++ b/mozilla/modules/plugin/tools/sdk/makefile.win
@@ -33,8 +33,8 @@ export::
   $(MAKE_INSTALL) $(XPDIST)\idl\nsISupports.idl .\idl
   $(MAKE_INSTALL) $(XPDIST)\idl\nsrootidl.idl .\idl
 
-  $(MAKE_INSTALL) $(XPDIST)\include\npapi.h .\include
-  $(MAKE_INSTALL) $(XPDIST)\include\npupp.h .\include
+  $(MAKE_INSTALL) $(XPDIST)\include\plugin\npapi.h .\include
+  $(MAKE_INSTALL) $(XPDIST)\include\plugin\npupp.h .\include
 
   $(MAKE_INSTALL) $(XPDIST)\include\java\jni.h .\include
   $(MAKE_INSTALL) $(XPDIST)\include\java\jni_md.h .\include