diff --git a/include/ehs/Serializer.h b/include/ehs/Serializer.h
index 594500a..78b6658 100644
--- a/include/ehs/Serializer.h
+++ b/include/ehs/Serializer.h
@@ -1071,7 +1071,9 @@ namespace ehs
         template<typename T, typename O>
         Str<T, O> ReadStr(O size = 0)
         {
-			if (!size)
+			bool sizeKnown = size;
+
+			if (!sizeKnown)
 				while (&data[offset + sizeof(T) * size])
 					size++;
 
@@ -1096,7 +1098,10 @@ namespace ehs
 					Util::Copy(&result[0], &data[offset], result.Size(true));
 			}
 
-			offset += result.Size(true) + 1;
+			offset += result.Size(true);
+
+			if (!sizeKnown)
+				offset++;
 
             return result;
         }