diff --git a/src/core/lib/support/thd.c b/src/core/lib/support/thd.c
index 41daeb5d0e5..40f53a18e59 100644
--- a/src/core/lib/support/thd.c
+++ b/src/core/lib/support/thd.c
@@ -33,7 +33,7 @@
 
 /* Posix implementation for gpr threads. */
 
-#include <memory.h>
+#include <string.h>
 
 #include <grpc/support/thd.h>