diff --git a/src/lib/ebus/symbol.cpp b/src/lib/ebus/symbol.cpp
index 9e3702da..9075d451 100644
--- a/src/lib/ebus/symbol.cpp
+++ b/src/lib/ebus/symbol.cpp
@@ -79,7 +79,7 @@ result_t SymbolString::parseHex(const string& str, const bool isEscaped)
 	return RESULT_OK;
 }
 
-const string SymbolString::getDataStr(const bool unescape)
+const string SymbolString::getDataStr(const bool unescape, const bool skipLastSymbol)
 {
 	stringstream sstr;
 	bool previousEscape = false;
@@ -87,19 +87,20 @@ const string SymbolString::getDataStr(const bool unescape)
 	for (size_t i = 0; i < m_data.size(); i++) {
 		unsigned char value = m_data[i];
 		if (m_unescapeState == 0 && unescape && previousEscape) {
-			if (value == 0x00)
-				sstr << "a9"; // ESC
-			else if (value == 0x01)
-				sstr << "aa"; // SYN
-			else
-				sstr << "XX"; // invalid escape sequence
-
+			if (!skipLastSymbol || i+1 < m_data.size()) {
+				if (value == 0x00)
+					sstr << "a9"; // ESC
+				else if (value == 0x01)
+					sstr << "aa"; // SYN
+				else
+					sstr << "XX"; // invalid escape sequence
+			}
 			previousEscape = false;
 		}
 		else if (m_unescapeState == 0 && unescape && value == ESC) {
 			previousEscape = true; // escape sequence not yet finished
 		}
-		else {
+		else if (!skipLastSymbol || i+1 < m_data.size()) {
 			sstr << nouppercase << setw(2) << hex
 					<< setfill('0') << static_cast<unsigned>(value);
 		}
diff --git a/src/lib/ebus/symbol.h b/src/lib/ebus/symbol.h
index e52b5593..7914934d 100644
--- a/src/lib/ebus/symbol.h
+++ b/src/lib/ebus/symbol.h
@@ -67,9 +67,10 @@ public:
 	/**
 	 * Returns the symbols as hex string.
 	 * @param unescape whether to unescape an escaped instance.
+	 * @param skipLastSymbol whether to skip the last symbol (probably the CRC).
 	 * @return the symbols as hex string.
 	 */
-	const string getDataStr(const bool unescape=true);
+	const string getDataStr(const bool unescape=true, const bool skipLastSymbol=true);
 
 	/**
 	 * Returns a reference to the symbol at the specified index.
diff --git a/src/lib/ebus/test/test_data.cpp b/src/lib/ebus/test/test_data.cpp
index f3dbca50..1d9f14f1 100644
--- a/src/lib/ebus/test/test_data.cpp
+++ b/src/lib/ebus/test/test_data.cpp
@@ -26,6 +26,7 @@ using namespace std;
 void verify(bool expectFailMatch, string type, string input,
 		bool match, string expectStr, string gotStr)
 {
+	match = match && expectStr == gotStr;
 	if (expectFailMatch) {
 		if (match)
 			cout << "  failed " << type << " match >" << input
@@ -301,14 +302,14 @@ int main()
 
 		ostringstream output;
 		SymbolString writeMstr(false);
-		result = writeMstr.parseHex(mstr.getDataStr().substr(0, 10));
+		result = writeMstr.parseHex(mstr.getDataStr(true, false).substr(0, 10));
 		if (result != RESULT_OK) {
-			cout << "  parse \"" << mstr.getDataStr().substr(0, 10) << "\" error: " << getResultCode(result) << endl;
+			cout << "  parse \"" << mstr.getDataStr(true, false).substr(0, 10) << "\" error: " << getResultCode(result) << endl;
 		}
 		SymbolString writeSstr(false);
-		result = writeSstr.parseHex(sstr.getDataStr().substr(0, 2));
+		result = writeSstr.parseHex(sstr.getDataStr(true, false).substr(0, 2));
 		if (result != RESULT_OK) {
-			cout << "  parse \"" << sstr.getDataStr().substr(0, 2) << "\" error: " << getResultCode(result) << endl;
+			cout << "  parse \"" << sstr.getDataStr(true, false).substr(0, 2) << "\" error: " << getResultCode(result) << endl;
 		}
 		result = fields->read(pt_masterData, mstr, 0, output, false, verbose);
 		if (result >= RESULT_OK) {
diff --git a/src/lib/ebus/test/test_symbol.cpp b/src/lib/ebus/test/test_symbol.cpp
index 8a8b273c..e3376d26 100644
--- a/src/lib/ebus/test/test_symbol.cpp
+++ b/src/lib/ebus/test/test_symbol.cpp
@@ -31,7 +31,7 @@ int main ()
 	if (result != RESULT_OK)
 		std::cout << "parse escaped error: " << getResultCode(result) << std::endl;
 
-	std::string gotStr = sstr.getDataStr(false), expectStr = "10feb5050427a90015a90177";
+	std::string gotStr = sstr.getDataStr(false, false), expectStr = "10feb5050427a90015a90177";
 
 	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
 		std::cout << "parse escaped OK" << std::endl;
@@ -51,7 +51,7 @@ int main ()
 		        << std::setfill('0') << static_cast<unsigned>(expectCrc)
 		        << std::endl;
 
-	gotStr = sstr.getDataStr(), expectStr = "10feb5050427a915aa77";
+	gotStr = sstr.getDataStr(true, false), expectStr = "10feb5050427a915aa77";
 
 	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
 		std::cout << "unescape OK" << std::endl;
@@ -64,7 +64,7 @@ int main ()
 	if (result != RESULT_OK)
 		std::cout << "parse unescaped error: " << getResultCode(result) << std::endl;
 
-	gotStr = sstr.getDataStr();
+	gotStr = sstr.getDataStr(true, false);
 
 	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
 		std::cout << "parse unescaped OK" << std::endl;