diff --git a/Makefile.dep b/Makefile.dep
index 43a8c4831f..c4acbeb2a2 100644
--- a/Makefile.dep
+++ b/Makefile.dep
@@ -20,6 +20,9 @@ ifneq (,$(findstring uart0,$(USEMODULE)))
 	ifeq (,$(findstring lib,$(USEMODULE)))
 		USEMODULE += lib	
 	endif
+	ifeq (,$(findstring posix,$(USEMODULE)))
+		USEMODULE += posix
+	endif
 endif
 
 ifneq (,$(findstring cc110x,$(USEMODULE)))
diff --git a/examples/ccn-lite-client/Makefile b/examples/ccn-lite-client/Makefile
index 4d981d5359..b7b843db84 100644
--- a/examples/ccn-lite-client/Makefile
+++ b/examples/ccn-lite-client/Makefile
@@ -36,7 +36,6 @@ export QUIET ?= 1
 USEMODULE += config
 USEMODULE += shell
 USEMODULE += shell_commands
-USEMODULE += uart0
 USEMODULE += posix
 USEMODULE += ps
 USEMODULE += auto_init
diff --git a/examples/ccn-lite-relay/Makefile b/examples/ccn-lite-relay/Makefile
index 4c0e61113f..6bff29cfa9 100644
--- a/examples/ccn-lite-relay/Makefile
+++ b/examples/ccn-lite-relay/Makefile
@@ -34,7 +34,6 @@ export QUIET ?= 1
 # Modules to include:
 
 USEMODULE += config
-USEMODULE += uart0
 USEMODULE += posix
 USEMODULE += auto_init
 USEMODULE += hwtimer
diff --git a/examples/default/Makefile b/examples/default/Makefile
index 372aeb2a0f..336ad79fe1 100644
--- a/examples/default/Makefile
+++ b/examples/default/Makefile
@@ -34,7 +34,6 @@ export QUIET ?= 1
 # Modules to include:
 
 USEMODULE += posix
-USEMODULE += uart0
 USEMODULE += shell
 USEMODULE += shell_commands
 USEMODULE += ps
diff --git a/examples/rpl_udp/Makefile b/examples/rpl_udp/Makefile
index 96dd0621a5..f6c82e3e29 100644
--- a/examples/rpl_udp/Makefile
+++ b/examples/rpl_udp/Makefile
@@ -39,7 +39,6 @@ CFLAGS += "-Wno-cpp"
 USEMODULE += auto_init
 USEMODULE += shell
 USEMODULE += shell_commands
-USEMODULE += uart0
 USEMODULE += posix
 USEMODULE += ps 
 USEMODULE += vtimer 
diff --git a/sys/uart0/Makefile b/sys/uart0/Makefile
index 4d873e0393..04f1ef49f3 100644
--- a/sys/uart0/Makefile
+++ b/sys/uart0/Makefile
@@ -1,5 +1,3 @@
-MODULE =uart0
+MODULE = uart0
 
 include $(MAKEBASE)/Makefile.base
-
-
diff --git a/tests/test_irq/Makefile b/tests/test_irq/Makefile
index e68aaf89ec..aadfbd61d3 100644
--- a/tests/test_irq/Makefile
+++ b/tests/test_irq/Makefile
@@ -18,7 +18,6 @@ else
 
 USEMODULE += auto_init
 USEMODULE += hwtimer
-USEMODULE += uart0
 USEMODULE += posix
 
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/test_shell/Makefile b/tests/test_shell/Makefile
index 81de89a770..d09f7efc12 100644
--- a/tests/test_shell/Makefile
+++ b/tests/test_shell/Makefile
@@ -12,7 +12,6 @@ export RIOTBASE = $(CURDIR)/../..
 USEMODULE += shell
 USEMODULE += shell_commands
 USEMODULE += ps
-USEMODULE += uart0
 USEMODULE += posix
 
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/test_shell/ReadMe.txt b/tests/test_shell/ReadMe.txt
index 130c898e6c..55266ba493 100644
--- a/tests/test_shell/ReadMe.txt
+++ b/tests/test_shell/ReadMe.txt
@@ -1,13 +1,13 @@
 This project shows how to use own or the system shell commands. In order to use 
 the system shell commands:
 
-1. Additionally to the module: shell, shell_commands, uart0 and posix, 
+1. Additionally to the module: shell, shell_commands and posix, 
    the module for the corresponding system command is to include, e.g. 
    module ps for the ps command (cf. the Makefile in the project root 
    directory). 
 2. The shell must be initialized as follows:
         2.1 shell_t sys_shell;
-        2.2 shell_init(&shell, shell_commands, shell_bufsize shell_readc, 
+        2.2 shell_init(&shell, shell_commands, shell_bufsize, shell_readc, 
                        shell_putchar); 
             or shell_init(&sys_shell, NULL, shell_bufsize,
                           shell_readc, shell_putchar);