diff --git a/attrib/gattrib.c b/attrib/gattrib.c
index 1cdec3d..daf6312 100644
--- a/attrib/gattrib.c
+++ b/attrib/gattrib.c
@@ -34,8 +34,8 @@
 #include <stdio.h>
 
 #include <bluetooth/bluetooth.h>
-#include <btio/btio.h>
 
+#include "btio/btio.h"
 #include "lib/uuid.h"
 #include "src/log.h"
 #include "attrib/att.h"
diff --git a/attrib/gatttool.c b/attrib/gatttool.c
index ebc8123..9f2ead9 100644
--- a/attrib/gatttool.c
+++ b/attrib/gatttool.c
@@ -37,7 +37,7 @@
 
 #include "lib/uuid.h"
 #include "att.h"
-#include <btio/btio.h>
+#include "btio/btio.h"
 #include "gattrib.h"
 #include "gatt.h"
 #include "gatttool.h"
diff --git a/attrib/interactive.c b/attrib/interactive.c
index 9826a4b..70c091c 100644
--- a/attrib/interactive.c
+++ b/attrib/interactive.c
@@ -39,7 +39,7 @@
 #include <readline/history.h>
 
 #include "lib/uuid.h"
-#include <btio/btio.h>
+#include "btio/btio.h"
 #include "att.h"
 #include "gattrib.h"
 #include "gatt.h"
diff --git a/attrib/utils.c b/attrib/utils.c
index 77bab27..17f02be 100644
--- a/attrib/utils.c
+++ b/attrib/utils.c
@@ -34,7 +34,7 @@
 #include <bluetooth/sdp.h>
 
 #include "lib/uuid.h"
-#include <btio/btio.h>
+#include "btio/btio.h"
 #include "att.h"
 #include "gattrib.h"
 #include "gatt.h"