diff --git a/src/hostapi/coreaudio/pa_mac_core.c b/src/hostapi/coreaudio/pa_mac_core.c
index 9939be1..0ebf20d 100644
--- a/src/hostapi/coreaudio/pa_mac_core.c
+++ b/src/hostapi/coreaudio/pa_mac_core.c
@@ -2546,7 +2546,7 @@ static PaError CloseStream( PaStream* s )
 		
 		if( stream->inputUnit )
         {
-            Boolean isInput = FALSE;
+            Boolean isInput = TRUE;
             CleanupDevicePropertyListeners( stream, stream->inputDevice, isInput );
 		}