diff --git a/ges/ges-command-line-formatter.c b/ges/ges-command-line-formatter.c
index ff17e32d5f..beaf24417b 100644
--- a/ges/ges-command-line-formatter.c
+++ b/ges/ges-command-line-formatter.c
@@ -23,6 +23,7 @@
 #include "ges/ges-structured-interface.h"
 #include "ges-structure-parser.h"
 #include "ges-internal.h"
+#define YY_NO_UNISTD_H
 #include "ges-parse-lex.h"
 
 struct _GESCommandLineFormatterPrivate
diff --git a/ges/parse.l b/ges/parse.l
index 04f533af97..b846f40875 100644
--- a/ges/parse.l
+++ b/ges/parse.l
@@ -9,6 +9,7 @@
 %option extra-type="GESStructureParser *"
 %option never-interactive
 %option noinput
+%option nounistd
 
 CLIP 		[ ]+\+clip[ ]+
 TEST_CLIP       [ ]+\+test-clip[ ]+