diff --git a/mysql-test/r/ctype_latin1.result b/mysql-test/r/ctype_latin1.result
index cf4bf6e2fdd..f8e07e1eb6f 100644
--- a/mysql-test/r/ctype_latin1.result
+++ b/mysql-test/r/ctype_latin1.result
@@ -369,3 +369,25 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
 SELECT '„a' as str;
 str
 „a
+set @str= _latin1 'ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc';
+SELECT convert(@str collate latin1_bin using utf8);
+convert(@str collate latin1_bin using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_general_ci using utf8);
+convert(@str collate latin1_general_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_german1_ci using utf8);
+convert(@str collate latin1_german1_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_danish_ci using utf8);
+convert(@str collate latin1_danish_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_spanish_ci using utf8);
+convert(@str collate latin1_spanish_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_german2_ci using utf8);
+convert(@str collate latin1_german2_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
+SELECT convert(@str collate latin1_swedish_ci using utf8);
+convert(@str collate latin1_swedish_ci using utf8)
+ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc
diff --git a/mysql-test/t/ctype_latin1.test b/mysql-test/t/ctype_latin1.test
index a005b4769c4..dead9a7a0bc 100644
--- a/mysql-test/t/ctype_latin1.test
+++ b/mysql-test/t/ctype_latin1.test
@@ -95,4 +95,18 @@ SET collation_connection='latin1_bin';
 CREATE TABLE „a (a int);
 SELECT '„a' as str;
 
+
+#
+# Bug#18321: Can't store EuroSign with latin1_german1_ci and latin1_general_ci
+# The problem was in latin1->utf8->latin1 round trip.
+#
+set @str= _latin1 'ABC €°§ß²³µ~ äöüÄÖÜ áéíóú ÀÈÌÒÙ @ abc';
+SELECT convert(@str collate latin1_bin using utf8);
+SELECT convert(@str collate latin1_general_ci using utf8);
+SELECT convert(@str collate latin1_german1_ci using utf8);
+SELECT convert(@str collate latin1_danish_ci using utf8);
+SELECT convert(@str collate latin1_spanish_ci using utf8);
+SELECT convert(@str collate latin1_german2_ci using utf8);
+SELECT convert(@str collate latin1_swedish_ci using utf8);
+
 # End of 4.1 tests