diff --git a/src/osd/modules/input/input_sdl.cpp b/src/osd/modules/input/input_sdl.cpp
index 1be07a3a429..e1ec2509d5e 100644
--- a/src/osd/modules/input/input_sdl.cpp
+++ b/src/osd/modules/input/input_sdl.cpp
@@ -33,6 +33,7 @@
 #include <algorithm>
 #include <cctype>
 #include <chrono>
+#include <cmath>
 #include <cstddef>
 #include <cstring>
 #include <initializer_list>