diff --git a/libr/core/cmd_anal.inc.c b/libr/core/cmd_anal.inc.c
index f4f5fb74b44ad..1d68d767b2cd4 100644
--- a/libr/core/cmd_anal.inc.c
+++ b/libr/core/cmd_anal.inc.c
@@ -2323,6 +2323,14 @@ static bool mw(REsil *esil, ut64 addr, const ut8 *buf, int len) {
 	return true;
 }
 
+static bool rw(REsil *esil, const char *regname, ut64 num) {
+	return true;
+}
+
+static bool rr(REsil *esil, const char *regname, ut64 *num, int *size) {
+	return true;
+}
+
 static bool mr(REsil *esil, ut64 addr, ut8 *buf, int len) {
 	int *ec = (int*)esil->user;
 	*ec += len;
@@ -2339,6 +2347,8 @@ static int esil_cost(RCore *core, ut64 addr, const char *expr) {
 	e->user = &ec;
 	e->cb.mem_read = mr;
 	e->cb.mem_write = mw;
+	e->cb.reg_write = rw;
+	e->cb.reg_read = rr;
 	r_esil_parse (e, expr);
 	r_esil_free (e);
 	return ec;
diff --git a/test/db/cmd/cmd_ao b/test/db/cmd/cmd_ao
index de3e1a0f8b4b6..e31b957ccc5fe 100644
--- a/test/db/cmd/cmd_ao
+++ b/test/db/cmd/cmd_ao
@@ -448,3 +448,20 @@ EXPECT=<<EOF
 ]
 EOF
 RUN
+
+
+NAME=araoar
+FILE=bins/mach0/mac-ls4
+ARGS=-a arm -b 64
+CMDS=<<EOF
+ar PC=entry0
+ar~^pc
+ao @ 0x100003ba0~type
+ar~^pc
+EOF
+EXPECT=<<EOF
+pc = 0x100003a90
+type: jmp
+pc = 0x100003a90
+EOF
+RUN