diff --git a/src/test/run-make/issue-25581/test.c b/src/test/run-make/issue-25581/test.c
index 5736b1730216d..ab85d2bb13fb1 100644
--- a/src/test/run-make/issue-25581/test.c
+++ b/src/test/run-make/issue-25581/test.c
@@ -2,15 +2,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
-struct ByteSlice {
-        uint8_t *data;
-        size_t len;
-};
-
-size_t slice_len(struct ByteSlice bs) {
-        return bs.len;
+size_t slice_len(uint8_t *data, size_t len) {
+    return len;
 }
 
-uint8_t slice_elem(struct ByteSlice bs, size_t idx) {
-        return bs.data[idx];
+uint8_t slice_elem(uint8_t *data, size_t len, size_t idx) {
+    return data[idx];
 }