diff --git a/cpu/msp430_common/include/stdio.h b/cpu/msp430_common/include/stdio.h
index 145cdb79cc..3e13eb90a8 100644
--- a/cpu/msp430_common/include/stdio.h
+++ b/cpu/msp430_common/include/stdio.h
@@ -27,12 +27,12 @@
 
 #include_next <stdio.h>
 
-int getchar(void);
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+int getchar(void);
+
 #ifdef __cplusplus
 }
 #endif