diff --git a/RF24Network.cpp b/RF24Network.cpp
index 183e2336..4909b19b 100644
--- a/RF24Network.cpp
+++ b/RF24Network.cpp
@@ -110,7 +110,9 @@ bool RF24Network::enqueue(void)
     IF_SERIAL_DEBUG(printf_P(PSTR("ok\n\r")));
   }
   else
+  {
     IF_SERIAL_DEBUG(printf_P(PSTR("failed\n\r")));
+  }
 
   return result;
 }
diff --git a/examples/sensornet/Jamfile b/examples/sensornet/Jamfile
index d62f5191..41360036 100644
--- a/examples/sensornet/Jamfile
+++ b/examples/sensornet/Jamfile
@@ -40,7 +40,7 @@ AVRDUDE 	= $(AVR_TOOLS_PATH)/avrdude ;
 DEFINES  	= F_CPU=$(F_CPU)L ARDUINO=$(ARDUINO_VERSION) ;
 CTUNING  	= -ffunction-sections -fdata-sections ;
 CXXTUNING  	= -fno-exceptions ; 
-CFLAGS  	= -Os -Wall -Werror -mmcu=$(MCU) $(CTUNING) ;
+CFLAGS  	= -Os -Werror -Wall -Wextra -mmcu=$(MCU) $(CTUNING) ;
 CXXFLAGS  	= $(CFLAGS) $(CXXTUNING) ;
 LDFLAGS  	= -Os -lm -Wl,--gc-sections -mmcu=atmega328p ;
 
diff --git a/examples/sensornet/nodeconfig.cpp b/examples/sensornet/nodeconfig.cpp
index 594ecd77..8a56b1d2 100644
--- a/examples/sensornet/nodeconfig.cpp
+++ b/examples/sensornet/nodeconfig.cpp
@@ -59,7 +59,7 @@ void nodeconfig_listen(void)
 
       // And we are done right now (no easy way to soft reset)
       printf_P(PSTR("\n\rManually reset address to: %c\n\rPress RESET to continue!"),c);
-      while(1);
+      while(1) ;
     }
   }
 }
diff --git a/examples/sensornet/printf.h b/examples/sensornet/printf.h
index 63501e46..df6c46ae 100644
--- a/examples/sensornet/printf.h
+++ b/examples/sensornet/printf.h
@@ -18,7 +18,7 @@
 
 #include "WProgram.h"
 
-int serial_putc( char c, FILE *t ) 
+int serial_putc( char c, FILE * ) 
 {
   Serial.write( c );