diff --git a/cpu/msp430-common/include/unistd.h b/cpu/msp430-common/include/unistd.h
index a207def04b..d7f05053f9 100644
--- a/cpu/msp430-common/include/unistd.h
+++ b/cpu/msp430-common/include/unistd.h
@@ -15,6 +15,8 @@
 extern "C" {
 #endif
 
+#include "msp430_types.h"
+
 #define STDIN_FILENO    0   ///< stdin file descriptor
 #define STDOUT_FILENO   1   ///< stdout file descriptor
 #define STDERR_FILENO   2   ///< stderr file descriptor