diff --git a/include/fennec/lang/detail/_int.h b/include/fennec/lang/detail/_int.h
index e921c31..85195a2 100644
--- a/include/fennec/lang/detail/_int.h
+++ b/include/fennec/lang/detail/_int.h
@@ -26,6 +26,7 @@
 #define __PTRDIFF_TYPE__ ptrdiff_t
 #endif
 
+// Include math since stdint will define its own versions of isinf and isnan
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>