diff --git a/alib2/src/alphabet/SymbolFromStringParser.cpp b/alib2/src/alphabet/SymbolFromStringParser.cpp
index c54e0a1bd015e76be21a232f632555dd60677217..718b472f8239fb539e34a652ed594b66abadd19a 100644
--- a/alib2/src/alphabet/SymbolFromStringParser.cpp
+++ b/alib2/src/alphabet/SymbolFromStringParser.cpp
@@ -32,7 +32,9 @@ Symbol SymbolFromStringParser::parseSymbol() {
 
 	SymbolFromStringLexer::Token token = m_SymbolLexer.next().token();
 	if(token.type == SymbolFromStringLexer::TokenType::TEOF && symbol != NULL) {
-		return *symbol;
+		Symbol res = std::move(*symbol);
+		delete symbol;
+		return std::move(res);
 	} else {
 		throw alib::AlibException();
 	}
diff --git a/alib2/src/label/LabelFromStringParser.cpp b/alib2/src/label/LabelFromStringParser.cpp
index bbdc8b17ca993106352061fece63bf1da69f9e74..4d69086ffe380f1f89e3161e648afb7d7e0dacf2 100644
--- a/alib2/src/label/LabelFromStringParser.cpp
+++ b/alib2/src/label/LabelFromStringParser.cpp
@@ -31,7 +31,9 @@ Label LabelFromStringParser::parseLabel() {
 
 	LabelFromStringLexer::Token token = m_Lexer.next().token();
 	if(token.type == LabelFromStringLexer::TokenType::TEOF && label != NULL) {
-		return *label;
+		Label res = std::move(*label);
+		delete label;
+		return std::move(res);
 	} else {
 		throw alib::AlibException();
 	}
diff --git a/alib2/src/regexp/RegExpFromStringParser.cpp b/alib2/src/regexp/RegExpFromStringParser.cpp
index 4f4d4faeddf9816f3ae9d456766ec0021336024c..a3fefdd1aa77caa585ae7dddf3af482d4ae7eebc 100644
--- a/alib2/src/regexp/RegExpFromStringParser.cpp
+++ b/alib2/src/regexp/RegExpFromStringParser.cpp
@@ -25,7 +25,9 @@ RegExp RegExpFromStringParser::parseRegexp() {
 
 	RegExpFromStringLexer::Token token = m_RegexpLexer.token();
 	if(token.type == RegExpFromStringLexer::TokenType::TEOF && regexp != NULL) {
-		return *regexp;
+		RegExp res = std::move(*regexp);
+		delete regexp;
+		return std::move(res);
 	} else {
 		throw alib::AlibException();
 	}
diff --git a/alib2/src/string/StringFromStringParser.cpp b/alib2/src/string/StringFromStringParser.cpp
index 086d95c757e3b2444dcab48fd65e8c32941d8aea..b7393a82649db73b4a137b6f92483304c7750996 100644
--- a/alib2/src/string/StringFromStringParser.cpp
+++ b/alib2/src/string/StringFromStringParser.cpp
@@ -43,7 +43,9 @@ String StringFromStringParser::parseString() {
 
 	StringFromStringLexer::Token token = m_StringLexer.next().token();
 	if(token.type == StringFromStringLexer::TokenType::TEOF && string != NULL) {
-		return *string;
+		String res = std::move(*string);
+		delete string;
+		return std::move(res);
 	} else {
 		throw alib::AlibException();
 	}