diff --git a/knx-linux/CMakeLists.txt b/knx-linux/CMakeLists.txt
index 2c2b136..0f3caec 100644
--- a/knx-linux/CMakeLists.txt
+++ b/knx-linux/CMakeLists.txt
@@ -6,5 +6,6 @@ project(knx-linux)
 set(LIBRARIES_FROM_REFERENCES "")
 add_executable(knx-linux ../src/knx/address_table_object.cpp ../src/knx/apdu.cpp ../src/knx/application_layer.cpp ../src/knx/application_program_object.cpp ../src/knx/association_table_object.cpp ../src/knx/bau.cpp ../src/knx/bau07B0.cpp ../src/knx/bau57B0.cpp ../src/knx/bau_systemB.cpp ../src/knx/bits.cpp ../src/knx/cemi_frame.cpp ../src/knx/data_link_layer.cpp ../src/knx/datapoint_types.cpp ../src/knx/device_object.cpp ../src/knx/group_object.cpp ../src/knx/group_object_table_object.cpp ../src/knx/interface_object.cpp ../src/knx/ip_data_link_layer.cpp ../src/knx/ip_parameter_object.cpp ../src/knx/memory.cpp ../src/knx/network_layer.cpp ../src/knx/npdu.cpp ../src/knx/table_object.cpp ../src/knx/tpdu.cpp ../src/knx/tpuart_data_link_layer.cpp ../src/knx/transport_layer.cpp ../src/knx/platform.cpp main.cpp ../src/linux_platform.cpp)
 target_link_libraries(knx-linux  "${LIBRARIES_FROM_REFERENCES}")
+include_directories(../src)
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wall -Wno-unknown-pragmas -Wno-switch -g -O0")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wall -Wno-unknown-pragmas -Wno-switch -g -O0")
diff --git a/src/knx/bits.cpp b/src/knx/bits.cpp
index 5762b24..2a913f0 100644
--- a/src/knx/bits.cpp
+++ b/src/knx/bits.cpp
@@ -10,7 +10,7 @@ uint8_t* popByte(uint8_t& b, uint8_t* data)
 void printHex(const char* suffix, const uint8_t *data, size_t length)
 {
     print(suffix);
-    for (int i = 0; i < length; i++) {
+    for (uint i = 0; i < length; i++) {
         if (data[i] < 0x10) { print("0"); }
         print(data[i], HEX);
         print(" ");
diff --git a/src/knx/table_object.cpp b/src/knx/table_object.cpp
index f561985..e14571f 100644
--- a/src/knx/table_object.cpp
+++ b/src/knx/table_object.cpp
@@ -8,7 +8,7 @@ TableObject::TableObject(Platform& platform): _platform(platform)
 
 }
 
-void TableObject::readProperty(PropertyID id, uint32_t start, uint32_t count, uint8_t* data)
+void TableObject::readProperty(PropertyID id, uint32_t start, uint32_t& count, uint8_t* data)
 {
     switch (id)
     {
diff --git a/src/knx/table_object.h b/src/knx/table_object.h
index 76bb526..5384e4e 100644
--- a/src/knx/table_object.h
+++ b/src/knx/table_object.h
@@ -7,7 +7,7 @@ class TableObject: public InterfaceObject
 {
 public:
     TableObject(Platform& platform);
-    virtual void readProperty(PropertyID id, uint32_t start, uint32_t count, uint8_t* data);
+    virtual void readProperty(PropertyID id, uint32_t start, uint32_t& count, uint8_t* data);
     virtual void writeProperty(PropertyID id, uint8_t start, uint8_t* data, uint8_t count);
     virtual uint8_t propertySize(PropertyID id);
     virtual ~TableObject();