diff --git a/src/metadata.cpp b/src/metadata.cpp
index 992c46d6..c22c2a1e 100644
--- a/src/metadata.cpp
+++ b/src/metadata.cpp
@@ -30,8 +30,6 @@
 #include <boost/algorithm/string.hpp>
 #include <boost/filesystem.hpp>
 
-#include <fstream>
-
 using namespace std;
 
 namespace boss {
@@ -536,13 +534,13 @@ namespace boss {
         return !(*this < rhs);
     }
     
-    boost::unordered_set<FormID,FormID_hash> Plugin::FormIDs() const {
+    std::set<FormID> Plugin::FormIDs() const {
 		return formIDs;
 	}
 
-    boost::unordered_set<FormID,FormID_hash> Plugin::OverlapFormIDs(const Plugin& plugin) const {
-        boost::unordered_set<FormID,FormID_hash> otherFormIDs = plugin.FormIDs();
-        boost::unordered_set<FormID,FormID_hash> overlap;
+    std::set<FormID> Plugin::OverlapFormIDs(const Plugin& plugin) const {
+        set<FormID> otherFormIDs = plugin.FormIDs();
+        set<FormID> overlap;
 
         set_intersection(formIDs.begin(), formIDs.end(), otherFormIDs.begin(), otherFormIDs.end(), inserter(overlap, overlap.begin()));
 
@@ -568,7 +566,7 @@ namespace boss {
         }
         if (find(requirements.begin(), requirements.end(), plugin) != requirements.end())
             return true;
-        if (find(loadAfter.begin(), loadAfter.end(), plugin) != requirements.end())
+        if (find(loadAfter.begin(), loadAfter.end(), plugin) != loadAfter.end())
             return true;
         return false;
     }
diff --git a/src/metadata.h b/src/metadata.h
index be401221..de6db84c 100644
--- a/src/metadata.h
+++ b/src/metadata.h
@@ -31,8 +31,6 @@
 #include <list>
 #include <set>
 
-#include <boost/unordered_set.hpp>
-
 namespace boss {
 
 
@@ -59,19 +57,6 @@ namespace boss {
         uint32_t id;
     };
 
-    
-    struct FormID_hash
-    : std::unary_function<FormID, std::size_t>
-{
-    std::size_t operator()(FormID const& p) const
-    {
-        std::size_t seed = 0;
-        boost::hash_combine(seed, p.Plugin());
-        boost::hash_combine(seed, p.Id());
-        return seed;
-    }
-};
-
     class ConditionalData {
     public:
         ConditionalData();
@@ -158,7 +143,7 @@ namespace boss {
         std::list<Message> Messages() const;
         std::set<Tag> Tags() const;
         
-        boost::unordered_set<FormID,FormID_hash> FormIDs() const;
+        std::set<FormID> FormIDs() const;
         std::vector<std::string> Masters() const;
         bool IsMaster() const;  //Checks master bit flag.
         std::string Version() const;
@@ -187,7 +172,7 @@ namespace boss {
         bool operator >= (const Plugin& rhs) const;
 
         //Load ordering functions.
-        boost::unordered_set<FormID,FormID_hash> OverlapFormIDs(const Plugin& plugin) const;
+        std::set<FormID> OverlapFormIDs(const Plugin& plugin) const;
         bool MustLoadAfter(const Plugin& plugin) const;  //Checks masters, reqs and loadAfter.
 
         //Validity checks.
@@ -203,7 +188,7 @@ namespace boss {
         std::set<Tag> tags;
         
         std::vector<std::string> masters;
-        boost::unordered_set<FormID,FormID_hash> formIDs;
+        std::set<FormID> formIDs;
         std::string version;  //Obtained from description field.
         bool isMaster;
     };