diff --git a/drivers/staging/usbip/userspace/Makefile.am b/drivers/staging/usbip/userspace/Makefile.am
index fbdeef3efd40..9ab19499fe00 100644
--- a/drivers/staging/usbip/userspace/Makefile.am
+++ b/drivers/staging/usbip/userspace/Makefile.am
@@ -1,5 +1,5 @@
 SUBDIRS := libsrc src
-includedir := @includedir@/usbip
+includedir = @includedir@/usbip
 include_HEADERS := $(addprefix libsrc/, \
 		     usbip_common.h vhci_driver.h usbip_host_driver.h)
 
diff --git a/drivers/staging/usbip/userspace/libsrc/Makefile.am b/drivers/staging/usbip/userspace/libsrc/Makefile.am
index 9b663a49c39a..4921189e0260 100644
--- a/drivers/staging/usbip/userspace/libsrc/Makefile.am
+++ b/drivers/staging/usbip/userspace/libsrc/Makefile.am
@@ -1,6 +1,6 @@
-libusbip_la_CPPFLAGS := -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
-libusbip_la_CFLAGS   := @EXTRA_CFLAGS@
-libusbip_la_LDFLAGS  := -version-info @LIBUSBIP_VERSION@
+libusbip_la_CPPFLAGS = -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
+libusbip_la_CFLAGS   = @EXTRA_CFLAGS@
+libusbip_la_LDFLAGS  = -version-info @LIBUSBIP_VERSION@
 
 lib_LTLIBRARIES := libusbip.la
 libusbip_la_SOURCES := names.c names.h usbip_host_driver.c usbip_host_driver.h \
diff --git a/drivers/staging/usbip/userspace/src/Makefile.am b/drivers/staging/usbip/userspace/src/Makefile.am
index 44ff0ca408b0..3f09f6ad39f7 100644
--- a/drivers/staging/usbip/userspace/src/Makefile.am
+++ b/drivers/staging/usbip/userspace/src/Makefile.am
@@ -1,6 +1,6 @@
-AM_CPPFLAGS := -I$(top_srcdir)/libsrc -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
-AM_CFLAGS   := @EXTRA_CFLAGS@ @PACKAGE_CFLAGS@
-LDADD       := $(top_builddir)/libsrc/libusbip.la @PACKAGE_LIBS@
+AM_CPPFLAGS = -I$(top_srcdir)/libsrc -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
+AM_CFLAGS   = @EXTRA_CFLAGS@ @PACKAGE_CFLAGS@
+LDADD       = $(top_builddir)/libsrc/libusbip.la @PACKAGE_LIBS@
 
 sbin_PROGRAMS := usbip usbipd