diff --git a/src/djlint/formatter/compress.py b/src/djlint/formatter/compress.py
index b872e34..68094c9 100644
--- a/src/djlint/formatter/compress.py
+++ b/src/djlint/formatter/compress.py
@@ -30,7 +30,7 @@ def compress_html(html: str, config: Config) -> str:
     # put attributes on one line
     html = re.sub(
         re.compile(
-            rf"(<(?:{config.indent_html_tags})\b)((?:\"[^\"]*\"|'[^']*'|{{{{(?:(?!}}}}).)*}}}}|{{%(?:(?!%}}).)*%}}|[^'\">{{}}])+)(/?>)",
+            rf"(<(?:{config.indent_html_tags}))\s((?:\"[^\"]*\"|'[^']*'|{{{{(?:(?!}}}}).)*}}}}|{{%(?:(?!%}}).)*%}}|[^'\">{{}}])+)(/?>)",
             flags=re.IGNORECASE | re.MULTILINE | re.VERBOSE,
         ),
         _flatten_attributes,
diff --git a/tests/test_config.py b/tests/test_config.py
index d72497f..2539017 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -13,10 +13,14 @@ for a single test, run::
 """
 # pylint: disable=C0116
 
+from typing import TextIO
+
 from click.testing import CliRunner
 
 from src.djlint import main as djlint
 
+from .conftest import reformat
+
 
 def test_custom_tags(runner: CliRunner) -> None:
     result = runner.invoke(djlint, ["tests/config_custom_tags/html.html", "--check"])
@@ -34,7 +38,7 @@ def test_custom_tags(runner: CliRunner) -> None:
     assert result.exit_code == 1
 
 
-def test_custom_html(runner: CliRunner) -> None:
+def test_custom_html(runner: CliRunner, tmp_file: TextIO) -> None:
     result = runner.invoke(djlint, ["tests/config_custom_html/html.html", "--check"])
     print(result.output)
     assert (
@@ -49,6 +53,10 @@ def test_custom_html(runner: CliRunner) -> None:
     )
     assert result.exit_code == 1
 
+    # https://github.com/Riverside-Healthcare/djLint/issues/236
+    output = reformat(tmp_file, runner, b"<some-long-custom-element></some-long-custom-element>\n")
+    assert output.exit_code == 0
+
 
 def test_extension(runner: CliRunner) -> None:
     result = runner.invoke(djlint, ["tests/config_extension", "--check"])