diff --git a/common/speculative.cpp b/common/speculative.cpp
index e6ec8f6ac62..07df3521dd4 100644
--- a/common/speculative.cpp
+++ b/common/speculative.cpp
@@ -13,6 +13,7 @@
 
 #include <algorithm>
 #include <cassert>
+#include <cmath>
 #include <cstring>
 #include <iomanip>
 #include <map>