diff --git a/tests/fuzzer_corpora/test_z85_decode_fuzzer.txt b/tests/fuzzer_corpora/test_z85_decode_fuzzer.txt
new file mode 100644
index 00000000..69f90d1a
--- /dev/null
+++ b/tests/fuzzer_corpora/test_z85_decode_fuzzer.txt
@@ -0,0 +1 @@
+46555a5a2d54414746555a5ad6514147ec
\ No newline at end of file
diff --git a/tests/test_z85_decode_fuzzer.cpp b/tests/test_z85_decode_fuzzer.cpp
index c0a65010..db37d3ba 100644
--- a/tests/test_z85_decode_fuzzer.cpp
+++ b/tests/test_z85_decode_fuzzer.cpp
@@ -60,10 +60,21 @@ extern "C" int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)
 #ifndef ZMQ_USE_FUZZING_ENGINE
 void test_bind_null_fuzzer ()
 {
-    uint8_t buffer[32] = {0};
+    uint8_t **data;
+    size_t *len, num_cases = 0;
+    if (fuzzer_corpus_encode ("tests/fuzzer_corpora/test_z85_decode_fuzzer.txt",
+                              &data, &len, &num_cases)
+        != 0)
+        exit (77);
 
-    TEST_ASSERT_SUCCESS_ERRNO (
-      LLVMFuzzerTestOneInput (buffer, sizeof (buffer)));
+    while (num_cases-- > 0) {
+        TEST_ASSERT_SUCCESS_ERRNO (
+          LLVMFuzzerTestOneInput (data[num_cases], len[num_cases]));
+        free (data[num_cases]);
+    }
+
+    free (data);
+    free (len);
 }
 
 int main (int argc, char **argv)