diff --git a/unikernel-demo/io1/printf/Makefile b/unikernel-demo/io1/printf/Makefile
new file mode 100644
index 00000000..ecd636b7
--- /dev/null
+++ b/unikernel-demo/io1/printf/Makefile
@@ -0,0 +1,3 @@
+export ukl-obj-m := main.o
+
+include ../../Makefile
diff --git a/unikernel-demo/io1/printf/main.c b/unikernel-demo/io1/printf/main.c
new file mode 100644
index 00000000..ea0d990c
--- /dev/null
+++ b/unikernel-demo/io1/printf/main.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+#ifndef USERSPACE
+#define main ukl_main
+#endif
+
+typedef struct {
+    char a;
+    char *b;
+    int c;
+} test_t;
+
+int main(void) {
+    char        str[250];
+    test_t      test = {
+        .a = 'a',
+        .b = "Hello!",
+        .c = 10
+    };
+
+    printf("a = %c, b = %s, c = %d\n", test.a, test.b, test.c);
+    snprintf(str, sizeof(str), "a = %c, b = %s, c = %d\n", test.a, test.b, test.c);
+    puts(str);
+    return 0;
+}