diff --git a/ChangeLog b/ChangeLog
index 84b3c210..34b85b9e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22338,3 +22338,5 @@
 2021-08-23 Fred Gleason <fredg@paravelsystems.com>
 	* Documented the 'realm_name' member of the 'rd_system_settings'
 	struct in the rd_listsystemsettings(7) man page.
+2021-08-24 Fred Gleason <fredg@paravelsystems.com>
+	* Fixed a bug in caed(8) that broke the build.
diff --git a/cae/driver_alsa.cpp b/cae/driver_alsa.cpp
index 0298ccf0..6b2c884e 100644
--- a/cae/driver_alsa.cpp
+++ b/cae/driver_alsa.cpp
@@ -18,6 +18,7 @@
 //   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 //
 
+#include <math.h>
 #include <signal.h>
 
 #include <rdconf.h>
diff --git a/cae/driver_jack.cpp b/cae/driver_jack.cpp
index 46082572..cac89bd6 100644
--- a/cae/driver_jack.cpp
+++ b/cae/driver_jack.cpp
@@ -18,6 +18,8 @@
 //   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 //
 
+#include <math.h>
+
 #include <samplerate.h>
 
 #include <rdconf.h>