1 files changed, 1 insertions, 0 deletions

diff --git a/pulse.cc b/pulse.cc
index 36f2739..919a5a5 100644
--- a/pulse.cc
+++ b/pulse.cc
@@ -4,6 +4,7 @@
 // C
 #include <err.h>
 #include <stdio.h>
+#include <math.h>
 #include <stdlib.h>
 
 // C++