diff --git a/libs/midi++2/mtc.cc b/libs/midi++2/mtc.cc
index 053a23b9c2..44962137d8 100644
--- a/libs/midi++2/mtc.cc
+++ b/libs/midi++2/mtc.cc
@@ -19,7 +19,6 @@
  */
 
 #include <cstdlib>
-#include <unistd.h>
 #include <cstring>
 #include <iostream>
 
diff --git a/libs/midi++2/parser.cc b/libs/midi++2/parser.cc
index 6996a418d3..0d0de37717 100644
--- a/libs/midi++2/parser.cc
+++ b/libs/midi++2/parser.cc
@@ -19,7 +19,6 @@
 
 #include <cstring>
 #include <cstdlib>
-#include <unistd.h>
 #include <cstring>
 #include <iostream>
 #include <iterator>