diff --git a/libs/ardour/analyser.cc b/libs/ardour/analyser.cc
index 823d425bcf..2e14c74b86 100644
--- a/libs/ardour/analyser.cc
+++ b/libs/ardour/analyser.cc
@@ -16,7 +16,6 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 */
-#include <cassert>
 
 #include <ardour/analyser.h>
 #include <ardour/audiofilesource.h>
diff --git a/libs/ardour/ardour/export_status.h b/libs/ardour/ardour/export_status.h
index 210e9585a4..3ca5905a22 100644
--- a/libs/ardour/ardour/export_status.h
+++ b/libs/ardour/ardour/export_status.h
@@ -22,7 +22,6 @@
 #define __ardour_export_status_h__
 
 #include <list>
-#include <stdint.h>
 
 #include <stdint.h>
 #include <sigc++/signal.h>
diff --git a/libs/ardour/export_file_io.cc b/libs/ardour/export_file_io.cc
index d4e8710759..7da6e8a60c 100644
--- a/libs/ardour/export_file_io.cc
+++ b/libs/ardour/export_file_io.cc
@@ -17,7 +17,6 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 */
-#include <cstring>
 
 #include <string.h>
 
diff --git a/libs/ardour/export_utilities.cc b/libs/ardour/export_utilities.cc
index bd6677e363..64fa62ded5 100644
--- a/libs/ardour/export_utilities.cc
+++ b/libs/ardour/export_utilities.cc
@@ -29,7 +29,6 @@
 #include <cstdlib>
 #undef  __USE_SVID
 
-#include <cstring>
 #include <unistd.h>
 #include <inttypes.h>
 #include <float.h>