diff --git a/include/hash.h b/include/hash.h
index 1a1b571a..5d56a108 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -33,8 +33,6 @@
 u32 hash32(u8 *key, u32 len, u32 seed);
 u64 hash64(u8 *key, u32 len, u64 seed);
 
-u32 hash32_xxh32(u8 *key, u32 len, u32 seed);
-
 #if 0
 
 The following code is disabled because xxh3 is 30% faster
diff --git a/src/afl-fuzz-bitmap.c b/src/afl-fuzz-bitmap.c
index d089b696..4ea14bd3 100644
--- a/src/afl-fuzz-bitmap.c
+++ b/src/afl-fuzz-bitmap.c
@@ -542,9 +542,8 @@ u8 __attribute__((hot)) save_if_interesting(afl_state_t *afl, void *mem,
                           afl->fsrv.map_size);
       simplify_trace(afl, afl->san_fsrvs[0].trace_bits);
 
-      // cksum_simplified = hash64(afl->san_fsrvs[0].trace_bits,
-      // afl->fsrv.map_size, HASH_CONST);
-      cksum_simplified = hash32_xxh32(afl->san_fsrvs[0].trace_bits,
+      // Note: Original SAND implementation used XXHASH32
+      cksum_simplified = hash32(afl->san_fsrvs[0].trace_bits,
                                       afl->fsrv.map_size, HASH_CONST);
 
       if (unlikely(!bitmap_read(afl->simplified_n_fuzz, cksum_simplified))) {
@@ -570,7 +569,7 @@ u8 __attribute__((hot)) save_if_interesting(afl_state_t *afl, void *mem,
         likely(afl->san_abstraction == UNIQUE_TRACE)) {
 
       cksum_unique =
-          hash32_xxh32(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+          hash32(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
       if (unlikely(!bitmap_read(afl->n_fuzz_dup, cksum) &&
                    fault == afl->crash_mode)) {
 
diff --git a/src/afl-performance.c b/src/afl-performance.c
index 3a2bc4b0..2bb787e4 100644
--- a/src/afl-performance.c
+++ b/src/afl-performance.c
@@ -423,17 +423,4 @@ char *sha1_hex_for_file(const char *fname, u32 len) {
   ck_free(tmp);
   return hex;
 
-}
-
-#ifdef _DEBUG
-u32 hash32_xxh32(u8 *key, u32 len, u32 seed) {
-
-#else
-inline u32 hash32_xxh32(u8 *key, u32 len, u32 seed) {
-
-#endif
-
-  (void)seed;
-  return (u32)XXH32(key, len, seed);
-
-}
+}
\ No newline at end of file