diff --git a/code/nel/include/nel/misc/entity_id.h b/code/nel/include/nel/misc/entity_id.h
index b4e40909e..8c80daaba 100644
--- a/code/nel/include/nel/misc/entity_id.h
+++ b/code/nel/include/nel/misc/entity_id.h
@@ -580,7 +580,11 @@ struct CEntityIdHashMapTraits
 	size_t operator() (const NLMISC::CEntityId &id ) const
 	{
 		uint64 hash64 = id.getUniqueId();
-		return size_t(hash64) ^ size_t( hash64 >> 32 );
+#if (HAVE_X86_64)
+		return (size_t)hash64;
+#else
+		return (size_t)hash64 ^ (size_t)(hash64 >> 32);
+#endif
 		//return size_t(id.getShortId());
 	}
 	bool operator() (const NLMISC::CEntityId &id1, const NLMISC::CEntityId &id2) const
diff --git a/code/nel/include/nel/misc/ucstring.h b/code/nel/include/nel/misc/ucstring.h
index 88e599c1a..2f921f9ae 100644
--- a/code/nel/include/nel/misc/ucstring.h
+++ b/code/nel/include/nel/misc/ucstring.h
@@ -363,7 +363,7 @@ struct CUCStringHashMapTraits
 	}
 	bool operator() (const ucstring &id1, const ucstring &id2) const
 	{
-		return id1.size() < id2.size();
+		return id1 < id2;
 	}
 };
 
diff --git a/code/nel/include/nel/sound/context_sound.h b/code/nel/include/nel/sound/context_sound.h
index 8424ee087..eeb29b433 100644
--- a/code/nel/include/nel/sound/context_sound.h
+++ b/code/nel/include/nel/sound/context_sound.h
@@ -71,6 +71,19 @@ struct CContextMatcher
 			return memcmp(JokersValues, other.JokersValues, sizeof(uint32)*NbJoker) == 0;
 	}
 
+	bool operator<(const CContextMatcher &other) const
+	{
+		if (UseRandom)
+			if (RandomValue != other.RandomValue)
+				return RandomValue < other.RandomValue;
+
+		int cmp = memcmp(JokersValues, other.JokersValues, sizeof(uint32) * NbJoker);
+		if (cmp != 0)
+			return cmp < 0;
+
+		return false;
+	}
+
 	size_t getHashValue() const
 	{
 		return size_t(HashValue);
@@ -89,10 +102,9 @@ struct CContextMatcher
 		}
 		bool operator() (const CContextMatcher &patternMatcher1, const CContextMatcher &patternMatcher2) const
 		{
-			return patternMatcher1.getHashValue() < patternMatcher2.getHashValue();
+			return patternMatcher1 < patternMatcher2;
 		}
 	};
-
 };