diff --git a/src/rwops/rwops_segment.c b/src/rwops/rwops_segment.c
index 1bbc6274..20ad6beb 100644
--- a/src/rwops/rwops_segment.c
+++ b/src/rwops/rwops_segment.c
@@ -8,6 +8,7 @@
 
 #include "rwops_segment.h"
 #include "log.h"
+#include "util/miscmath.h"
 
 typedef struct Segment {
 	SDL_RWops *wrapped;