diff --git a/mysql-test/r/func_analyse.result b/mysql-test/r/func_analyse.result
index 1820782d2f8..92fc26e7ba3 100644
--- a/mysql-test/r/func_analyse.result
+++ b/mysql-test/r/func_analyse.result
@@ -123,3 +123,16 @@ CREATE TABLE t2 SELECT 1 FROM t1, t1 t3 GROUP BY t3.a PROCEDURE ANALYSE();
 ERROR HY000: Incorrect usage of PROCEDURE and non-SELECT
 DROP TABLE t1;
 End of 5.0 tests
+#
+# Bug#11765202: Dbug_violation_helper::~Dbug_violation_helper(): Assertion `!_entered' failed.
+#
+DROP TABLE IF EXISTS t1;
+Warnings:
+Note	1051	Unknown table 't1'
+CREATE TABLE t1 (a VARCHAR(2) CHARSET UTF8 NOT NULL);
+INSERT INTO t1 VALUES ('e'),('e'),('e-');
+SELECT * FROM t1 PROCEDURE ANALYSE();
+Field_name	Min_value	Max_value	Min_length	Max_length	Empties_or_zeros	Nulls	Avg_value_or_avg_length	Std	Optimal_fieldtype
+test.t1.a	e	e-	1	2	0	0	1.3333	NULL	ENUM('e','e-') NOT NULL
+DROP TABLE t1;
+End of 5.1 tests
diff --git a/mysql-test/t/func_analyse.test b/mysql-test/t/func_analyse.test
index 05f739bfd69..63929d8766b 100644
--- a/mysql-test/t/func_analyse.test
+++ b/mysql-test/t/func_analyse.test
@@ -133,3 +133,15 @@ DROP TABLE t1;
 
 
 --echo End of 5.0 tests
+
+--echo #
+--echo # Bug#11765202: Dbug_violation_helper::~Dbug_violation_helper(): Assertion `!_entered' failed.
+--echo #
+
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (a VARCHAR(2) CHARSET UTF8 NOT NULL);
+INSERT INTO t1 VALUES ('e'),('e'),('e-');
+SELECT * FROM t1 PROCEDURE ANALYSE();
+DROP TABLE t1;
+
+--echo End of 5.1 tests
diff --git a/sql/sql_analyse.cc b/sql/sql_analyse.cc
index e3c0ed28052..b070768a7b6 100644
--- a/sql/sql_analyse.cc
+++ b/sql/sql_analyse.cc
@@ -242,7 +242,7 @@ bool test_if_number(NUM_INFO *info, const char *str, uint str_len)
       if (str == end)
       {
 	info->is_float = 1;             // we can't use variable decimals here
-	return 1;
+	DBUG_RETURN(1);
       }
       DBUG_RETURN(0);
     }