diff --git a/Makefile b/Makefile
index 78877cd..215332f 100644
--- a/Makefile
+++ b/Makefile
@@ -28,20 +28,20 @@ libudev.so: ${OBJ}
 	${CC} ${XCFLAGS} -o $@ ${OBJ} ${XLDFLAGS}
 
 install: libudev.so libudev.a
-	mkdir -p 		 ${DESTDIR}${INCLUDEDIR} ${DESTDIR}${LIBDIR}
+	mkdir -p         ${DESTDIR}${INCLUDEDIR} ${DESTDIR}${LIBDIR}
 	cp -f udev.h  	 ${DESTDIR}${INCLUDEDIR}/libudev.h
 	chmod 0644       ${DESTDIR}${INCLUDEDIR}/libudev.h
 	cp -f libudev.a  ${DESTDIR}${LIBDIR}/libudev.a
 	chmod 0644       ${DESTDIR}${LIBDIR}/libudev.a
 	cp -f libudev.so ${DESTDIR}${LIBDIR}/libudev.so
-	chmod 0755 		 ${DESTDIR}${LIBDIR}/libudev.so
+	chmod 0755       ${DESTDIR}${LIBDIR}/libudev.so
 	ln -s libudev.so ${DESTDIR}${LIBDIR}/libudev.so.1
 
 uninstall:
 	rm -f ${DESTDIR}${LIBDIR}/libudev.a \
-		  ${DESTDIR}${LIBDIR}/libudev.so \
-		  ${DESTDIR}${LIBDIR}/libudev.so.1 \
-		  ${DESTDIR}${INCLUDEDIR}/libudev.h
+          ${DESTDIR}${LIBDIR}/libudev.so \
+          ${DESTDIR}${LIBDIR}/libudev.so.1 \
+          ${DESTDIR}${INCLUDEDIR}/libudev.h
 
 clean:
 	rm -f libudev.so libudev.a ${OBJ}
diff --git a/udev.c b/udev.c
index cc6a147..d15bce5 100644
--- a/udev.c
+++ b/udev.c
@@ -10,7 +10,7 @@ struct udev
 UDEV_EXPORT struct udev *udev_new(void)
 {
     struct udev *udev;
-    
+
     udev = calloc(1, sizeof(struct udev));
     return udev;
 }
diff --git a/udev.h b/udev.h
index 83a3a9e..0279592 100644
--- a/udev.h
+++ b/udev.h
@@ -7,9 +7,9 @@ extern "C" {
 #define UDEV_EXPORT __attribute__ ((visibility("default")))
 
 #define udev_list_entry_foreach(list_entry, first_entry) \
-        for (list_entry = first_entry; \
-             list_entry != NULL; \
-             list_entry = udev_list_entry_get_next(list_entry))
+    for (list_entry = first_entry; \
+         list_entry != NULL; \
+         list_entry = udev_list_entry_get_next(list_entry))
 
 struct udev;
 struct udev_device;
diff --git a/udev_device.c b/udev_device.c
index 42f9b5d..a2d1108 100644
--- a/udev_device.c
+++ b/udev_device.c
@@ -15,7 +15,7 @@ struct udev_device
 {
     struct udev_list_entry properties;
     struct udev_list_entry sysattrs;
-	struct udev_device *parent;
+    struct udev_device *parent;
     struct udev *udev;
     char *subsystem;
     char *syspath;
diff --git a/udev_util.c b/udev_util.c
index 28d07d9..d95f2e3 100644
--- a/udev_util.c
+++ b/udev_util.c
@@ -7,12 +7,12 @@
 
 int xasprintf(char *str, const char *fmt, ...)
 {
-	va_list list;
-	int len;
+    va_list list;
+    int len;
 
-	va_start(list, fmt);
-	len = vsnprintf(NULL, 0, fmt, list);
-	va_end(list);
+    va_start(list, fmt);
+    len = vsnprintf(NULL, 0, fmt, list);
+    va_end(list);
 
     if (len == -1) {
         return -1;