diff --git a/src/core/iomgr/pollset.h b/src/core/iomgr/pollset.h
index 7374a4ec13126468c1cb2fb6748c32bf03ada405..36d80d5c2975272928f798d389b2069e4dc1193f 100644
--- a/src/core/iomgr/pollset.h
+++ b/src/core/iomgr/pollset.h
@@ -35,6 +35,7 @@
 #define __GRPC_INTERNAL_IOMGR_POLLSET_H_
 
 #include <grpc/support/port_platform.h>
+#include <grpc/support/time.h>
 
 /* A grpc_pollset is a set of file descriptors that a higher level item is
    interested in. For example: