1 files changed, 2 insertions, 0 deletions

diff --git a/parser.cc b/parser.cc
index ef525138..cc93b9dc 100644
--- a/parser.cc
+++ b/parser.cc
@@ -4,6 +4,8 @@
 #include <fstream>
 #ifdef WIN32
 #include <io.h>
+#else
+#include <unistd.h>
 #endif
 
 namespace ledger {