diff --git a/libmaxsi/c/hsrc/stdio.h b/libmaxsi/c/hsrc/stdio.h
index 934d48a7..bc30ec2b 100644
--- a/libmaxsi/c/hsrc/stdio.h
+++ b/libmaxsi/c/hsrc/stdio.h
@@ -89,9 +89,11 @@ extern int fseek(FILE* stream, long offset, int whence);
 extern long ftell(FILE* stream);
 extern size_t fwrite(const void* restrict ptr, size_t size, size_t nitems, FILE* restrict stream);
 extern int getc(FILE* stream);
+extern int getchar(void);
 extern void perror(const char* s);
 extern int printf(const char* restrict format, ...);
 extern int putc(int c, FILE* stream);
+extern int putchar(int c);
 extern void rewind(FILE* stream);
 extern int vfprintf(FILE* restrict stream, const char* restrict format, va_list ap);
 extern int vprintf(const char* restrict format, va_list ap);
@@ -115,10 +117,8 @@ extern int fseeko(FILE* stream, off_t offset, int whence);
 extern int fsetpos(FILE* stream, const fpos_t* pos);
 extern int ftrylockfile(FILE* file);
 extern int getchar_unlocked(void);
-extern int getchar(void);
 extern int getc_unlocked(FILE* stream);
 extern int pclose(FILE* steam);
-extern int putchar(int c);
 extern int putchar_unlocked(int c);
 extern int putc_unlocked(int c, FILE* steam);
 extern int puts(const char* s);
diff --git a/libmaxsi/c/stdio.c b/libmaxsi/c/stdio.c
index bf0a9e97..d76467a6 100644
--- a/libmaxsi/c/stdio.c
+++ b/libmaxsi/c/stdio.c
@@ -37,3 +37,13 @@ int init_stdio()
 	stderr = fdio_newfile(2, "w");
 	return 0;
 }
+
+int getchar(void)
+{
+	return fgetc(stdin);
+}
+
+int putchar(int c)
+{
+	return fputc(c, stdout);
+}