diff --git a/src/ast_values.hpp b/src/ast_values.hpp
index 228aac3..42608f7 100644
--- a/src/ast_values.hpp
+++ b/src/ast_values.hpp
@@ -9,7 +9,6 @@
 
 #include <boost/optional.hpp>
 #include <boost/variant.hpp>
-#include <set>
 
 struct enum_ {
     enum_();
@@ -36,7 +35,7 @@
 struct bits_ {
     bool operator==(const bits_&) const;
     bool operator<(const bits_&) const;
-    std::set<std::string> m_bits;
+    std::vector<std::string> m_bits;
 };
 
 struct module_ {
diff --git a/src/sysrepo_access.cpp b/src/sysrepo_access.cpp
index 6357a7a..6176f67 100644
--- a/src/sysrepo_access.cpp
+++ b/src/sysrepo_access.cpp
@@ -68,7 +68,7 @@
         while (!ss.eof()) {
             std::string bit;
             ss >> bit;
-            res.m_bits.insert(bit);
+            res.m_bits.push_back(bit);
         }
         return res;