diff --git a/CHANGELOG b/CHANGELOG
index c261d8a85..386bccce6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,8 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Managesieve: Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
+
 RELEASE 1.3.4
 -------------
 - Fix bug where contacts search could skip some records (#6130)
diff --git a/plugins/managesieve/Changelog b/plugins/managesieve/Changelog
index 5a61f3d36..39276ce94 100644
--- a/plugins/managesieve/Changelog
+++ b/plugins/managesieve/Changelog
@@ -1,3 +1,4 @@
+- Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
 - Fix parsing dot-staffed lines in multiline text (#5838)
 - Fix AM/PM suffix in vacation time selectors
 - Fix bug where 'exists' operator was reset to 'contains' (#5899)
diff --git a/plugins/managesieve/lib/Roundcube/rcube_sieve_script.php b/plugins/managesieve/lib/Roundcube/rcube_sieve_script.php
index 228213bee..0e49c98f5 100644
--- a/plugins/managesieve/lib/Roundcube/rcube_sieve_script.php
+++ b/plugins/managesieve/lib/Roundcube/rcube_sieve_script.php
@@ -1100,7 +1100,7 @@ class rcube_sieve_script
         }
 
         // multi-line string
-        if (preg_match('/[\r\n\0]/', $str) || strlen($str) > 1024) {
+        if (preg_match('/[\r\n\0]/', $str)) {
             return sprintf("text:\n%s\n.\n", self::escape_multiline_string($str));
         }
         // quoted-string
diff --git a/plugins/managesieve/tests/src/parser b/plugins/managesieve/tests/src/parser
index c99b49814..0e2cef218 100644
--- a/plugins/managesieve/tests/src/parser
+++ b/plugins/managesieve/tests/src/parser
@@ -50,3 +50,9 @@ if envelope :domain :is "From" "domain.tld"
 	fileinto "domain.tld";
 	stop;
 }
+# rule:[do not wrap long lines]
+if envelope :domain :is "From" "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+{
+	fileinto "domain.tld";
+	stop;
+}
diff --git a/plugins/managesieve/tests/src/parser.out b/plugins/managesieve/tests/src/parser.out
index 796343d4a..45712d036 100644
--- a/plugins/managesieve/tests/src/parser.out
+++ b/plugins/managesieve/tests/src/parser.out
@@ -50,3 +50,9 @@ if envelope :domain :is "From" "domain.tld"
 	fileinto "domain.tld";
 	stop;
 }
+# rule:[do not wrap long lines]
+if envelope :domain :is "From" "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+{
+	fileinto "domain.tld";
+	stop;
+}