# fix build with clang++ (bug #921405)
diff --git a/src/widgets/FreqControl.cxx b/src/widgets/FreqControl.cxx
index 2b1734b..e59dc9c 100644
--- a/src/widgets/FreqControl.cxx
+++ b/src/widgets/FreqControl.cxx
@@ -35,6 +35,7 @@
 #endif
 
 #include <string.h>
+#include <stdint.h>
 
 #include "FreqControl.h"
 #include "gettext.h"