diff --git a/EcCommand.m b/EcCommand.m
index a316f67..7e6c02e 100644
--- a/EcCommand.m
+++ b/EcCommand.m
@@ -150,7 +150,7 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
 - (void) cmdPing: (id <CmdPing>)from
 	sequence: (unsigned)num
 	   extra: (NSData*)data;
-- (void) cmdQuit: (NSInteger)sig;
+- (oneway void) cmdQuit: (NSInteger)sig;
 - (void) command: (NSData*)dat
 	      to: (NSString*)t
 	    from: (NSString*)f;
@@ -707,7 +707,7 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
   [from cmdGnip: self sequence: num extra: nil];
 }
 
-- (void) cmdQuit: (NSInteger)sig
+- (oneway void) cmdQuit: (NSInteger)sig
 {
   if (sig == tStatus && control != nil)
     {
diff --git a/EcConsole.m b/EcConsole.m
index 26445db..5cbf1ab 100644
--- a/EcConsole.m
+++ b/EcConsole.m
@@ -98,7 +98,7 @@ static BOOL commandIsRepeat (NSString *string)
   return NO;	// Not a client of the Command server
 }
 
-- (void) cmdQuit: (NSInteger)sig
+- (oneway void) cmdQuit: (NSInteger)sig
 {
   [timer invalidate];
   timer = nil;
diff --git a/EcControl.m b/EcControl.m
index 2068d30..d30c1b5 100644
--- a/EcControl.m
+++ b/EcControl.m
@@ -342,7 +342,7 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
 - (void) cmdPing: (id <CmdPing>)from
 	sequence: (unsigned)num
 	   extra: (NSData*)data;
-- (void) cmdQuit: (NSInteger)status;
+- (oneway void) cmdQuit: (NSInteger)status;
 - (void) command: (NSData*)dat
 	    from: (NSString*)f;
 - (BOOL) connection: (NSConnection*)ancestor
@@ -494,7 +494,7 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
   [from cmdGnip: self sequence: num extra: nil];
 }
 
-- (void) cmdQuit: (NSInteger)status
+- (oneway void) cmdQuit: (NSInteger)status
 {
   [sink shutdown];
   exit (status);
diff --git a/EcProcess.h b/EcProcess.h
index b7f0e1f..b241b5b 100644
--- a/EcProcess.h
+++ b/EcProcess.h
@@ -713,7 +713,7 @@ extern NSString*	cmdVersion(NSString *ver);
  * Subclasses should override this method to perform any pre-shutdown cleanup
  * before they call the superclass implementation.
  */
-- (void) cmdQuit: (NSInteger)status;
+- (oneway void) cmdQuit: (NSInteger)status;
 
 /** Returns non-zero (a signal) if the process has received a unix signal.
  */
@@ -879,7 +879,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Should be over-ridden to perform extra tidy up on shutdown of the
  * process - should call [super cmdQuit:...] at the end of the method.
  */
-- (void) cmdQuit: (NSInteger)status;
+- (oneway void) cmdQuit: (NSInteger)status;
 
 /** Used to tell your application about configuration changes (the
  * default implementation merges the configuration change into the
diff --git a/EcProcess.m b/EcProcess.m
index b32418b..89c8cbe 100644
--- a/EcProcess.m
+++ b/EcProcess.m
@@ -3630,7 +3630,7 @@ With two parameters ('maximum' and a number),\n\
   va_end(ap);
 }
 
-- (void) cmdQuit: (NSInteger)status
+- (oneway void) cmdQuit: (NSInteger)status
 {
   if (reservedPipe[1] > 0)
     {