diff --git a/CHANGES b/CHANGES
index 4f461c13da..47cf3f3285 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+4494.	[bug]		Look for <editline/readline.h>. [RT #43429]
+
 4493.	[bug]		bin/tests/system/dyndb/driver/Makefile.in should use
 			SO_TARGETS. [RT# 43336]
 
diff --git a/bin/dig/nslookup.c b/bin/dig/nslookup.c
index f00ab4558e..b4e4979764 100644
--- a/bin/dig/nslookup.c
+++ b/bin/dig/nslookup.c
@@ -36,9 +36,15 @@
 #include <dig/dig.h>
 
 #if defined(HAVE_READLINE)
+#if defined(HAVE_EDITLINE_READLINE_H)
+#include <editline/readline.h>
+#elif defined(HAVE_READLINE_READLINE_H)
 #include <readline/readline.h>
+#if defined (HAVE_READLINE_HISTORY_H)
 #include <readline/history.h>
 #endif
+#endif
+#endif
 
 static isc_boolean_t short_form = ISC_TRUE,
 	tcpmode = ISC_FALSE,
diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index 395985963e..c0e12414fb 100644
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -81,9 +81,13 @@
 #include <bind9/getaddresses.h>
 
 #if defined(HAVE_READLINE)
+#if defined(HAVE_EDITLINE_READLINE_H)
+#include <editline/readline.h>
+#else
 #include <readline/readline.h>
 #include <readline/history.h>
 #endif
+#endif
 
 #ifdef HAVE_ADDRINFO
 #ifdef HAVE_GETADDRINFO
diff --git a/config.h.in b/config.h.in
index a733fae8f6..d45c18a6fb 100644
--- a/config.h.in
+++ b/config.h.in
@@ -215,6 +215,9 @@ int sigwait(const unsigned int *set, int *sig);
 /* Define to 1 to enable dnstap support */
 #undef HAVE_DNSTAP
 
+/* Define to 1 if you have the <editline/readline.h> header file. */
+#undef HAVE_EDITLINE_READLINE_H
+
 /* Define to 1 if you have the `EVP_sha256' function. */
 #undef HAVE_EVP_SHA256
 
@@ -377,6 +380,12 @@ int sigwait(const unsigned int *set, int *sig);
 /* Define to 1 if you have the `readline' function. */
 #undef HAVE_READLINE
 
+/* Define to 1 if you have the <readline/history.h> header file. */
+#undef HAVE_READLINE_HISTORY_H
+
+/* Define to 1 if you have the <readline/readline.h> header file. */
+#undef HAVE_READLINE_READLINE_H
+
 /* Define to 1 if you have the <regex.h> header file. */
 #undef HAVE_REGEX_H
 
diff --git a/configure b/configure
index 90f8465fca..0ea01af4d4 100755
--- a/configure
+++ b/configure
@@ -19161,6 +19161,49 @@ done
 	LIBS="$saved_LIBS"
 	;;
 esac
+if test yes = "$ac_cv_func_readline"
+then
+	case "$READLINE_LIB" in
+	*edit*)
+		for ac_header in editline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "editline/readline.h" "ac_cv_header_editline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_editline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EDITLINE_READLINE_H 1
+_ACEOF
+
+fi
+
+done
+
+		;;
+	esac
+	for ac_header in readline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "readline/readline.h" "ac_cv_header_readline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_readline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_READLINE_READLINE_H 1
+_ACEOF
+
+fi
+
+done
+
+	for ac_header in readline/history.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "readline/history.h" "ac_cv_header_readline_history_h" "$ac_includes_default"
+if test "x$ac_cv_header_readline_history_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_READLINE_HISTORY_H 1
+_ACEOF
+
+fi
+
+done
+
+fi
 
 ISC_PRINT_OBJS=
 ISC_PRINT_SRCS=
diff --git a/configure.in b/configure.in
index 49ab0d1cde..82480b5927 100644
--- a/configure.in
+++ b/configure.in
@@ -3497,6 +3497,16 @@ no)	;;
 	LIBS="$saved_LIBS"
 	;;
 esac
+if test yes = "$ac_cv_func_readline"
+then
+	case "$READLINE_LIB" in
+	*edit*)
+		AC_CHECK_HEADERS(editline/readline.h)
+		;;
+	esac
+	AC_CHECK_HEADERS(readline/readline.h)
+	AC_CHECK_HEADERS(readline/history.h)
+fi
 
 ISC_PRINT_OBJS=
 ISC_PRINT_SRCS=