diff --git a/lib/utils.cpp b/lib/utils.cpp
index 5dabba2..89752ae 100644
--- a/lib/utils.cpp
+++ b/lib/utils.cpp
@@ -45,14 +45,14 @@ bool mkpath(std::string path, int mode)
             cur_dir = path.substr(0, pos);
             if (mkdir(cur_dir.c_str(), mode) != 0
                 && stat(cur_dir.c_str(), &buf) != 0) {
-                return -1;
+                return false;
             }
         }
         else {
             break;
         }
     }
-    return 0;
+    return true;
 }
 
 std::string dirname(const std::string &path)