diff --git a/src/headers/parsing/ParseComponents.hpp b/src/headers/parsing/ParseComponents.hpp
index c1bae05..c82f369 100644
--- a/src/headers/parsing/ParseComponents.hpp
+++ b/src/headers/parsing/ParseComponents.hpp
@@ -14,14 +14,14 @@ private:
     mutable unsigned int compCount = 0;
     inline void addComp(const auto& comp) const {
         subComponents.push_back(comp); ++compCount;
-    }; inline void addAllComps(auto& comps) { for (const auto& comp: comps) addComp(comp); }
+    }; inline void addAllComps(const auto& comps) const { for (const auto& comp: comps) addComp(comp); }
 protected:
     mutable vector<ParseComponent> subComponents;
 public:
     unsigned int& getCompCount() const { return compCount; }
     auto& getComponents() const { return subComponents; }
     void add(const ParseComponent& component) { addComp(component); };
-    void addAll(const vector<ParseComponent>& components) {  }
+    void addAll(const vector<ParseComponent>& components) { addAllComps(components); }
     void operator<<(const ParseComponent& component) { this->addComp(component); }
     explicit ParseTree(const ParseComponent& element): subComponents() { addComp(element); }
     ParseTree(const initializer_list<ParseComponent>& elements): subComponents() { addAllComps(elements); }