diff --git a/lib/Parser/MimeDir.php b/lib/Parser/MimeDir.php
index b0b52d223..a33771619 100644
--- a/lib/Parser/MimeDir.php
+++ b/lib/Parser/MimeDir.php
@@ -215,12 +215,20 @@ protected function parseLine($line)
                         && $e instanceof ParseException && str_contains($e->getMessage(), 'Invalid Mimedir file. Line starting at')
                         && ($this->options & Reader::OPTION_FIX_UNFOLDING)
                     ) {
-                        // Fix unfolding
-                        $component->remove($prevNode);
-                        $value = $prevNode->getValue() . ' ' . $line . PHP_EOL;
-                        $prevNode->offsetSet('VALUE', $value);
-                        $prevNode->setValue($value);
-                        $component->add($prevNode);
+                        if (preg_match('/[A-Z]\w+; /', $line)) {
+                            $line = preg_replace('/([A-Z]\w+;) /', '$1', $line);
+                            $result = $this->parseLine($line);
+                            if ($result) {
+                                $prevNode = $component->add($result);
+                            }
+                        } else {
+                            // Fix unfolding
+                            $component->remove($prevNode);
+                            $value = $prevNode->getValue() . ' ' . $line . PHP_EOL;
+                            $prevNode->offsetSet('VALUE', $value);
+                            $prevNode->setValue($value);
+                            $component->add($prevNode);
+                        }
                         continue;
                     }
                     throw $e;
diff --git a/tests/VObject/Parser/UnfoldingTest.php b/tests/VObject/Parser/UnfoldingTest.php
index 8d751ae7a..56c9e28e4 100644
--- a/tests/VObject/Parser/UnfoldingTest.php
+++ b/tests/VObject/Parser/UnfoldingTest.php
@@ -96,4 +96,31 @@ public function testNotFixUnknownProperty()
 
         $this->assertNotNull($vcard->children()[0]->CONFERENCE->getValue());
     }
+
+    public function testRemoveEmptySpaceAfterColon(): void
+    {
+        $vcard = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Proton AG//AndroidCalendar 2.11.20//EN
+BEGIN:VEVENT
+SEQUENCE:0
+ORGANIZER; CN=Plannert:mailto:noreply@sho.nl
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcard = (new MimeDir())->parse($vcard, Reader::OPTION_FIX_UNFOLDING | Reader::OPTION_FORGIVING);
+
+
+        $this->assertSame(
+            0,
+            $vcard->VEVENT->SEQUENCE->getValue()
+        );
+
+        $this->assertSame(
+            'ORGANIZER;CN=Plannert:mailto:noreply@sho.nl' . "\r\n",
+            $vcard->VEVENT->ORGANIZER->serialize()
+        );
+    }
 }