diff --git a/include/hash.h b/include/hash.h
index 0a48b60..cbaa80b 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -10,7 +10,8 @@ typedef enum {
     BaseFileObject,
     FileDiffObject,
     TreeObject,
-    TreeDiffObject
+    TreeDiffObject,
+    LogObject
 } ObjectType;
 
 void object_hash(ObjectType, char*, char*);
diff --git a/src/hash.c b/src/hash.c
index 83e6976..27c3d90 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -24,6 +24,7 @@ void object_hash(ObjectType obj_type, char* content, char* hex_hash) {
         case FileDiffObject: header_len = snprintf(header, sizeof(header), "filediff %zu", content_len); break;
         case TreeObject:     header_len = snprintf(header, sizeof(header), "tree %zu",     content_len); break;
         case TreeDiffObject: header_len = snprintf(header, sizeof(header), "treediff %zu", content_len); break;
+        case LogObject:      header_len = snprintf(header, sizeof(header), "log %zu",      content_len); break;
         default: header_len = 0; break;
     }
     header[header_len] = '\0';