diff --git a/plugins/embark-assistant/survey.cpp b/plugins/embark-assistant/survey.cpp
index 126395a85..4071d78b3 100644
--- a/plugins/embark-assistant/survey.cpp
+++ b/plugins/embark-assistant/survey.cpp
@@ -1,3 +1,4 @@
+#include <math.h>
 #include <vector>
 
 #include "Core.h"