diff --git a/3rdparty/iaxclient/lib/CMakeLists.txt b/3rdparty/iaxclient/lib/CMakeLists.txt
index c5deb9970..1a667a4e7 100644
--- a/3rdparty/iaxclient/lib/CMakeLists.txt
+++ b/3rdparty/iaxclient/lib/CMakeLists.txt
@@ -1,6 +1,6 @@
 # CMakeLists.txt, for utils/iaxclient/lib - 20130925
 # even if we don't select the codec, speex is used for pre-processing audio
-set(ENABLE_SPEXX 1)
+set(ENABLE_SPEEX 1)
 
 set(IAXCLIENT_BASE_SOURCES
     audio_encode.c
@@ -57,7 +57,7 @@ else()
     list(APPEND IAXCLIENT_BASE_SOURCES unixfuncs.c)
 endif(WIN32)
 
-if (ENABLE_SPEXX)
+if (ENABLE_SPEEX)
     list(APPEND IAXCLIENT_BASE_SOURCES codec_speex.c)
 
     if (SYSTEM_SPEEX)
@@ -115,7 +115,7 @@ if (ENABLE_SPEXX)
     
         include_directories(${PROJECT_SOURCE_DIR}/3rdparty/iaxclient/lib/libspeex/include)
     endif(SPEEX_FOUND AND SPEEXDSP_FOUND)
-endif(ENABLE_SPEXX)
+endif(ENABLE_SPEEX)
 
 if (ENABLE_ALSA)
     list(APPEND IAXCLIENT_BASE_SOURCES audio_alsa.c)