diff --git a/MCP23S17.cpp b/MCP23S17.cpp
index 549bb79..9b130b1 100644
--- a/MCP23S17.cpp
+++ b/MCP23S17.cpp
@@ -1,7 +1,7 @@
 //
 //    FILE: MCP23S17.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.3
+// VERSION: 0.2.0
 // PURPOSE: Arduino library for SPI MCP23S17 16 channel port expander
 //    DATE: 2021-12-30
 //     URL: https://github.com/RobTillaart/MCP23S17
@@ -12,6 +12,7 @@
 //  0.1.1   2022-01-10  add 16 bit interface
 //  0.1.2   2022-01-12  change the URL for library manager
 //  0.1.3   2022-04-13  fix compiling for NANO33 BLE
+//  0.2.0   2022-06-28  fix #10 incorrect mask
 
 
 #include "Arduino.h"
@@ -499,7 +500,7 @@ bool MCP23S17::getPullup8(uint8_t port, uint8_t &mask)
 bool MCP23S17::pinMode16(uint16_t value)
 {
   writeReg(MCP23S17_DDR_A, value >> 8);
-  writeReg(MCP23S17_DDR_B, value & 8);
+  writeReg(MCP23S17_DDR_B, value & 0xFF);
   _error = MCP23S17_OK;
   return true;
 }
@@ -509,7 +510,7 @@ bool MCP23S17::pinMode16(uint16_t value)
 bool MCP23S17::write16(uint16_t value)
 {
   writeReg(MCP23S17_GPIO_A, value >> 8);
-  writeReg(MCP23S17_GPIO_B, value & 8);
+  writeReg(MCP23S17_GPIO_B, value & 0xFF);
   _error = MCP23S17_OK;
   return true;
 }
@@ -530,7 +531,7 @@ uint16_t MCP23S17::read16()
 bool MCP23S17::setPolarity16(uint16_t mask)
 {
   writeReg(MCP23S17_POL_A, mask >> 8);
-  writeReg(MCP23S17_POL_B, mask & 8);
+  writeReg(MCP23S17_POL_B, mask & 0xFF);
   if (_error != MCP23S17_OK)
   {
     return false;
@@ -557,7 +558,7 @@ bool MCP23S17::getPolarity16(uint16_t &mask)
 bool MCP23S17::setPullup16(uint16_t mask)
 {
   writeReg(MCP23S17_PUR_A, mask >> 8);
-  writeReg(MCP23S17_PUR_B, mask & 8);
+  writeReg(MCP23S17_PUR_B, mask & 0xFF);
   if (_error != MCP23S17_OK)
   {
     return false;
diff --git a/MCP23S17.h b/MCP23S17.h
index d2718a3..9ef9525 100644
--- a/MCP23S17.h
+++ b/MCP23S17.h
@@ -2,7 +2,7 @@
 //
 //    FILE: MCP23S17.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.3
+// VERSION: 0.2.0
 // PURPOSE: Arduino library for SPI MCP23S17 16 channel port expander
 //    DATE: 2021-12-30
 //     URL: https://github.com/RobTillaart/MCP23S17
@@ -12,7 +12,7 @@
 #include "SPI.h"
 
 
-#define MCP23S17_LIB_VERSION              (F("0.1.3"))
+#define MCP23S17_LIB_VERSION              (F("0.2.0"))
 
 #define MCP23S17_OK                       0x00
 #define MCP23S17_PIN_ERROR                0x81
diff --git a/README.md b/README.md
index d90e134..d404794 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,4 @@ See examples.
 - **isConnected()** is not really needed
 - implement ESP32 specific support - see MCP_ADC.begin()
 - replace magic numbers with a defined constant
-- fix lint badge.
-
 
diff --git a/library.json b/library.json
index 7b30944..0b30d43 100644
--- a/library.json
+++ b/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/MCP23S17.git"
   },
-  "version": "0.1.3",
+  "version": "0.2.0",
   "license": "MIT",
   "frameworks": "arduino",
   "platforms": "*",
diff --git a/library.properties b/library.properties
index f951c41..8604e1b 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=MCP23S17
-version=0.1.3
+version=0.2.0
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for SPI MCP23S17 16 channel port expander  16 IO-lines