diff --git a/tests/tcg/s390x/libc/stdio.h b/tests/tcg/s390x/libc/stdio.h
new file mode 100644
index 0000000000..c3e45995f6
--- /dev/null
+++ b/tests/tcg/s390x/libc/stdio.h
@@ -0,0 +1,11 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef QEMU_TESTS_S390X_STDIO_H
+#define QEMU_TESTS_S390X_STDIO_H
+
+#include <minilib.h>
+
+#define printf ml_printf
+
+#endif
diff --git a/tests/tcg/s390x/libc/string.h b/tests/tcg/s390x/libc/string.h
new file mode 100644
index 0000000000..1cabeb90ad
--- /dev/null
+++ b/tests/tcg/s390x/libc/string.h
@@ -0,0 +1,12 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef QEMU_TESTS_S390X_STRING_H
+#define QEMU_TESTS_S390X_STRING_H
+
+#include <stddef.h>
+
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *dest, int c, size_t size);
+
+#endif
diff --git a/tests/tcg/s390x/system/meson.build b/tests/tcg/s390x/system/meson.build
index ca07f50305..1e360e7082 100644
--- a/tests/tcg/s390x/system/meson.build
+++ b/tests/tcg/s390x/system/meson.build
@@ -6,11 +6,13 @@ link_script = files('../softmmu.ld')[0]
 head64 = files('../head64.S')[0]
 console = files('../console.c')[0]
 ipl_inc = meson.project_source_root()/'include'/'hw'/'s390x'/'ipl'
+libc_inc = meson.current_source_dir()/'..'/'libc'
 cflags = ['-nostdlib',
           '-ffreestanding',
           '-Wa,--noexecstack',
           '-I', minilib_dir, minilib_printf,
           '-I', ipl_inc,
+          '-I', libc_inc,
           '-march=z13',
           head64, console]
 asmflags = ['-nostdlib',