diff --git a/apps/email/Makefile.email b/apps/email/Makefile.email
index eaad4d696..a6447172d 100644
--- a/apps/email/Makefile.email
+++ b/apps/email/Makefile.email
@@ -1,3 +1,3 @@
 email_src = email.c smtp-socket.c smtp-strings.c ctk-textentry-multiline.c \
-            psock.c uipbuf.c memb.c
+            psock.c memb.c
 email_dsc = email-dsc.c
diff --git a/apps/webserver/Makefile.webserver b/apps/webserver/Makefile.webserver
index c45c8e04d..fb39f3545 100644
--- a/apps/webserver/Makefile.webserver
+++ b/apps/webserver/Makefile.webserver
@@ -1,5 +1,5 @@
-webserver_src = webserver-nogui.c httpd.c http-strings.c psock.c uipbuf.c \
-                memb.c httpd-fs.c httpd-cgi.c
+webserver_src = webserver-nogui.c httpd.c http-strings.c psock.c memb.c \
+                httpd-fs.c httpd-cgi.c
 webserver_dsc = webserver-dsc.c
 
 #$(CONTIKI)/apps/webserver/http-strings.c: $(CONTIKI)/apps/webserver/http-strings