diff --git a/src/RuleSet/RuleSet.php b/src/RuleSet/RuleSet.php
index 9bf080b6..39a889c9 100644
--- a/src/RuleSet/RuleSet.php
+++ b/src/RuleSet/RuleSet.php
@@ -63,9 +63,11 @@ public static function parseRuleSet(ParserState $oParserState, RuleSet $oRuleSet
                     $oRule = Rule::parse($oParserState);
                 } catch (UnexpectedTokenException $e) {
                     try {
-                        $sConsume = $oParserState->consumeUntil(["\n", ';', '}'], true);
+                        $sConsume = $oParserState->consumeUntil(["\n", ';', '{', '}'], true);
                         // We need to “unfind” the matches to the end of the ruleSet as this will be matched later
-                        if ($oParserState->streql(\substr($sConsume, -1), '}')) {
+                        if ($oParserState->streql(\substr($sConsume, -1), '{')) { // We need to skip the entire block
+                            $oParserState->consumeUntil('}', true);
+                        } elseif ($oParserState->streql(\substr($sConsume, -1), '}')) {
                             $oParserState->backtrack(1);
                         } else {
                             while ($oParserState->comes(';')) {
diff --git a/tests/ParserTest.php b/tests/ParserTest.php
index 2c1c7287..37481fd7 100644
--- a/tests/ParserTest.php
+++ b/tests/ParserTest.php
@@ -809,6 +809,19 @@ public function selectorEscapesInFile(): void
         self::assertSame($sExpected, $oDoc->render());
     }
 
+    /**
+     * @test
+     */
+    public function invalidRulesInFile(): void
+    {
+        $oDoc = $this->parsedStructureForFile('invalid-rule', Settings::create()->withMultibyteSupport(true));
+        $sExpected = 'fusion-max-sh-shbp {}
+@media only screen and (max-width: 800px) {.has-sidebar #content {order: 1;}
+	.has-sidebar #sidebar {order: 2;margin-top: 50px;}
+	.has-sidebar #sidebar-2 {order: 3;margin-top: 50px;}}';
+        self::assertSame($sExpected, $oDoc->render());
+    }
+
     /**
      * @test
      */
diff --git a/tests/fixtures/invalid-rule.css b/tests/fixtures/invalid-rule.css
new file mode 100644
index 00000000..bec2b65c
--- /dev/null
+++ b/tests/fixtures/invalid-rule.css
@@ -0,0 +1,21 @@
+            fusion-max-sh-shbp {
+                .fusion-mobile-nav-holder .wpml-ls-item .menu-text,.fusion-mobile-nav-holder .wpml-ls-item > a,.wpml-ls-item .menu-text, .wpml-ls-item .sub-menu a > span {
+                    justify-content: flex-start;
+                }
+            }
+
+            @media only screen and (max-width: 800px) {
+                .has-sidebar #content {
+                    order:1;
+                }
+
+                .has-sidebar #sidebar {
+                    order: 2;
+                    margin-top: 50px;
+                }
+
+                .has-sidebar #sidebar-2 {
+                    order: 3;
+                    margin-top: 50px;
+                }
+            }