diff --git a/src/unit/test_crc64combine.c b/src/unit/test_crc64combine.c
index 67ef4ade4..ba5c29a42 100644
--- a/src/unit/test_crc64combine.c
+++ b/src/unit/test_crc64combine.c
@@ -135,19 +135,35 @@ again:
 
             /* get the single-character version for single-byte Redis behavior */
             set_crc64_cutoffs(0, crc64_test_size + 1);
-            if (bench_crc64(data, crc64_test_size, passes, expect, "crc_1byte", csv)) return 1;
+            if (bench_crc64(data, crc64_test_size, passes, expect, "crc_1byte", csv)) {
+                zfree(data);
+                data = NULL;
+                return 1;
+            }
 
             set_crc64_cutoffs(crc64_test_size + 1, crc64_test_size + 1);
             /* run with 8-byte "single" path, crcfaster */
-            if (bench_crc64(data, crc64_test_size, passes, expect, "crcspeed", csv)) return 1;
+            if (bench_crc64(data, crc64_test_size, passes, expect, "crcspeed", csv)) {
+                zfree(data);
+                data = NULL;
+                return 1;
+            }
 
             /* run with dual 8-byte paths */
             set_crc64_cutoffs(1, crc64_test_size + 1);
-            if (bench_crc64(data, crc64_test_size, passes, expect, "crcdual", csv)) return 1;
+            if (bench_crc64(data, crc64_test_size, passes, expect, "crcdual", csv)) {
+                zfree(data);
+                data = NULL;
+                return 1;
+            }
 
             /* run with tri 8-byte paths */
             set_crc64_cutoffs(1, 1);
-            if (bench_crc64(data, crc64_test_size, passes, expect, "crctri", csv)) return 1;
+            if (bench_crc64(data, crc64_test_size, passes, expect, "crctri", csv)) {
+                zfree(data);
+                data = NULL;
+                return 1;
+            }
 
             /* Be free memory region, be free. */
             zfree(data);