diff --git a/hdrcache.c b/hdrcache.c
index 5bcef1a..9c086ad 100644
--- a/hdrcache.c
+++ b/hdrcache.c
@@ -117,9 +117,9 @@ Header hdrcache_get(const char *path, const struct stat *st, unsigned *off)
 	mcdb_put(env, key, keysize, data, datasize);
     }
     void *blob = data->blob;
+    int blobsize = datasize - sizeof(struct cache_ent) + 1;
     char ublob[hdrsize_max];
     if (data->vflags & V_LZO) {
-	int blobsize = datasize - sizeof(struct cache_ent) + 1;
 	lzo_uint ublobsize = 0;
 	int rc = lzo1x_decompress(blob, blobsize, ublob, &ublobsize, NULL);
 	if (rc != LZO_E_OK || ublobsize < 1 || ublobsize > hdrsize_max) {
@@ -127,14 +127,16 @@ Header hdrcache_get(const char *path, const struct stat *st, unsigned *off)
 	    return NULL;
 	}
 	blob = ublob;
+	blobsize = ublobsize;
     }
-    Header h = headerLoad(blob);
+    Header h = headerCopyLoad(blob);
     if (h == NULL) {
 	fprintf(stderr, "%s %s: headerLoad failed\n", __func__, key);
 	return NULL;
     }
     if (off)
 	*off = data->off;
+    free(data);
     return h;
 }