diff --git a/contrib/mdocml/config.h b/contrib/mdocml/config.h
index b952c459e21d..e7d3c6313dfc 100644
--- a/contrib/mdocml/config.h
+++ b/contrib/mdocml/config.h
@@ -12,7 +12,7 @@
 #define HAVE_FTS 1
 #define HAVE_GETSUBOPT 1
 #define HAVE_MMAP 1
-#define HAVE_REALLOCARRAY 0
+#define HAVE_REALLOCARRAY 1
 #define HAVE_STRCASESTR 1
 #define HAVE_STRLCAT 1
 #define HAVE_STRLCPY 1
diff --git a/lib/libmandoc/Makefile b/lib/libmandoc/Makefile
index 276c46396ca5..6529ea4e551f 100644
--- a/lib/libmandoc/Makefile
+++ b/lib/libmandoc/Makefile
@@ -28,11 +28,9 @@ LIBROFF_SRCS=	eqn.c \
 		tbl_layout.c \
 		tbl_opts.c
 
-COMPAT_SRCS=	compat_reallocarray.c
 SRCS=		${LIBMAN_SRCS} \
 		${LIBMDOC_SRCS} \
 		${LIBROFF_SRCS} \
-		${COMPAT_SRCS} \
 		chars.c \
 		mandoc.c \
 		mandoc_aux.c \