diff --git a/simgear/sound/sample_group.cxx b/simgear/sound/sample_group.cxx
index cff2408c..1ac3fd6d 100644
--- a/simgear/sound/sample_group.cxx
+++ b/simgear/sound/sample_group.cxx
@@ -52,7 +52,6 @@ SGSampleGroup::~SGSampleGroup ()
     _smgr = nullptr;
 }
 
-#include <stdio.h>
 void SGSampleGroup::cleanup_removed_samples()
 {
     // Delete any buffers that might still be in use.