diff --git a/package/libtomcrypt/libtomcrypt.mk b/package/libtomcrypt/libtomcrypt.mk
index 35886057d4..fa2a585047 100644
--- a/package/libtomcrypt/libtomcrypt.mk
+++ b/package/libtomcrypt/libtomcrypt.mk
@@ -24,13 +24,12 @@ LIBTOMCRYPT_CFLAGS += -fPIC
 endif
 
 define LIBTOMCRYPT_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) $(TARGET_CONFIGURE_OPTS) CFLAGS="$(LIBTOMCRYPT_CFLAGS)"
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) -f makefile.unix $(TARGET_CONFIGURE_OPTS) CFLAGS="$(LIBTOMCRYPT_CFLAGS)"
 endef
 
 define LIBTOMCRYPT_INSTALL_STAGING_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) DESTDIR="$(STAGING_DIR)" \
-		PREFIX=/usr NODOCS=1 INSTALL_USER=$(shell id -u) \
-		INSTALL_GROUP=$(shell id -g) install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) -f makefile.unix \
+		DESTDIR="$(STAGING_DIR)" PREFIX=/usr install
 endef
 
 $(eval $(generic-package))