diff --git a/cmake_support/template_portaudio.def b/cmake_support/template_portaudio.def
index d05da59..8044d43 100644
--- a/cmake_support/template_portaudio.def
+++ b/cmake_support/template_portaudio.def
@@ -51,3 +51,4 @@ PaUtil_SetDebugPrintFunction        @55
 @DEF_EXCLUDE_WASAPI_SYMBOLS@PaWasapi_GetFramesPerHostBuffer     @60
 @DEF_EXCLUDE_WASAPI_SYMBOLS@PaWasapi_GetJackDescription         @61
 @DEF_EXCLUDE_WASAPI_SYMBOLS@PaWasapi_GetJackCount               @62
+@DEF_EXCLUDE_WASAPI_SYMBOLS@PaWasapi_GetDeviceMixFormat         @63