diff --git a/mysql-test/r/func_in.result b/mysql-test/r/func_in.result
index fad9a7157e1..87855091699 100644
--- a/mysql-test/r/func_in.result
+++ b/mysql-test/r/func_in.result
@@ -470,4 +470,9 @@ a
 Warnings:
 Warning	1292	Incorrect date value: '19772-07-29' for column 'a' at row 1
 DROP TABLE t1,t2,t3,t4;
+CREATE TABLE t1 (id int not null);
+INSERT INTO t1 VALUES (1),(2);
+SELECT id FROM t1 WHERE id IN(4564, (SELECT IF(1=0,1,1/0)) );
+id
+DROP TABLE t1;
 End of 5.0 tests
diff --git a/mysql-test/t/func_in.test b/mysql-test/t/func_in.test
index f9749662ec1..77592d015eb 100644
--- a/mysql-test/t/func_in.test
+++ b/mysql-test/t/func_in.test
@@ -360,4 +360,15 @@ SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
 
 DROP TABLE t1,t2,t3,t4;
 
+#
+# BUG#27362: IN with a decimal expression that may return NULL
+#
+
+CREATE TABLE t1 (id int not null);
+INSERT INTO t1 VALUES (1),(2);
+
+SELECT id FROM t1 WHERE id IN(4564, (SELECT IF(1=0,1,1/0)) );
+
+DROP TABLE t1;
+
 --echo End of 5.0 tests
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index e032974fdea..44472bf0803 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -2423,7 +2423,8 @@ void in_decimal::set(uint pos, Item *item)
   dec->len= DECIMAL_BUFF_LENGTH;
   dec->fix_buffer_pointer();
   my_decimal *res= item->val_decimal(dec);
-  if (res != dec)
+  /* if item->val_decimal() is evaluated to NULL then res == 0 */ 
+  if (!item->null_value && res != dec)
     my_decimal2decimal(res, dec);
 }