diff --git a/cylc/rose/utilities.py b/cylc/rose/utilities.py
index 1cf0dff..bad7eab 100644
--- a/cylc/rose/utilities.py
+++ b/cylc/rose/utilities.py
@@ -938,11 +938,7 @@ def record_cylc_install_options(
     rose_orig_host = get_host()
     for section in list(SECTIONS) + ['env']:
         if section in cli_config:
-            cli_config[section].set(
-                ['ROSE_ORIG_HOST'],
-                f'"{rose_orig_host}"'
-                if section in SECTIONS else rose_orig_host
-            )
+            cli_config[section].set(['ROSE_ORIG_HOST'], rose_orig_host)
             cli_config[section]['ROSE_ORIG_HOST'].comments = [
                 ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING
             ]
diff --git a/tests/functional/test_post_install.py b/tests/functional/test_post_install.py
index 1b980b9..a9ed528 100644
--- a/tests/functional/test_post_install.py
+++ b/tests/functional/test_post_install.py
@@ -112,7 +112,7 @@ def test_rose_fileinstall_uses_rose_template_vars(tmp_path):
                     'opts=\n[env]\nFOO=1'
                     f'\n[template variables]\nX=Y\n'
                     f'#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n'
-                    f'ROSE_ORIG_HOST="{HOST}"\n'
+                    f'ROSE_ORIG_HOST={HOST}\n'
                     f'\n[env]\n'
                     f'#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n'
                     f'ROSE_ORIG_HOST={HOST}\n'
@@ -139,8 +139,8 @@ def test_rose_fileinstall_uses_rose_template_vars(tmp_path):
                 'test/opt/rose-suite-bar.conf': '',
                 'test/opt/rose-suite-baz.conf': '',
                 'test/opt/rose-suite-cylc-install.conf': (
-                    '!opts=bar\n[env]\nBAR=1\nROSE_ORIG_HOST="abc123"\n'
-                    '\n[template variables]\nROSE_ORIG_HOST="abc123"\n'
+                    '!opts=bar\n[env]\nBAR=1\nROSE_ORIG_HOST=abc123\n'
+                    '\n[template variables]\nROSE_ORIG_HOST=abc123\n'
                 ),
                 'ref/opt/rose-suite-cylc-install.conf':
                     f'!opts=bar baz\n[env]\nBAR=2\n'
@@ -148,7 +148,7 @@ def test_rose_fileinstall_uses_rose_template_vars(tmp_path):
                     f'ROSE_ORIG_HOST={HOST}\n'
                     f'\n[template variables]\n'
                     f'#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n'
-                    f'ROSE_ORIG_HOST="{HOST}"\n',
+                    f'ROSE_ORIG_HOST={HOST}\n',
                 'ref/rose-suite.conf': '!opts=foo bar baz (cylc-install)',
                 'ref/opt/rose-suite-foo.conf': '',
                 'ref/opt/rose-suite-bar.conf': '',
@@ -177,7 +177,7 @@ def test_rose_fileinstall_uses_rose_template_vars(tmp_path):
                     f'ROSE_ORIG_HOST={HOST}\n'
                     f'\n[template variables]\n'
                     f'#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n'
-                    f'ROSE_ORIG_HOST="{HOST}"\n'
+                    f'ROSE_ORIG_HOST={HOST}\n'
                 ),
                 'ref/rose-suite.conf': '!opts=a b c (cylc-install)',
                 'ref/opt/rose-suite-a.conf': '',
@@ -207,7 +207,7 @@ def test_rose_fileinstall_uses_rose_template_vars(tmp_path):
                     f'ROSE_ORIG_HOST={HOST}\n'
                     f'[jinja2:suite.rc]\na="b"\n'
                     f'#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n'
-                    f'ROSE_ORIG_HOST="{HOST}"\n'
+                    f'ROSE_ORIG_HOST={HOST}\n'
                 ),
                 'ref/rose-suite.conf': (
                     '!opts=foo bar (cylc-install)\n[jinja2:suite.rc]\ny="base"'
diff --git a/tests/functional/test_reinstall.py b/tests/functional/test_reinstall.py
index 9e4104d..9f06495 100644
--- a/tests/functional/test_reinstall.py
+++ b/tests/functional/test_reinstall.py
@@ -126,7 +126,7 @@ async def test_cylc_validate(fixture_provide_flow, cylc_validate_cli):
                 '# This file records CLI Options.{version_info}\n'
                 '!opts=b c\n'
                 f'\n[env]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
-                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST="{HOST}"\n'
+                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
             )
         )
     ]
@@ -152,7 +152,7 @@ def test_cylc_install_files(fixture_install_flow, file_, expect, version_info):
                 '# This file records CLI Options.{version_info}\n'
                 '!opts=b c d\n'
                 f'\n[env]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
-                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST="{HOST}"\n'
+                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
             )
         )
     ]
@@ -195,7 +195,7 @@ async def test_cylc_reinstall_files(
                 '# This file records CLI Options.{version_info}\n'
                 '!opts=b c d\n'
                 f'\n[env]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
-                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST="{HOST}"\n'
+                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
             )
         )
     ]
diff --git a/tests/functional/test_reinstall_clean.py b/tests/functional/test_reinstall_clean.py
index f05c0b7..1bde1ba 100644
--- a/tests/functional/test_reinstall_clean.py
+++ b/tests/functional/test_reinstall_clean.py
@@ -110,8 +110,7 @@ async def fixture_install_flow(
                 '[env]\n'
                 f'FOO=1\n#{ROHIOS}\n'
                 f'ROSE_ORIG_HOST={HOST}\n'
-                f'\n[template variables]\n#{ROHIOS}'
-                f'\nROSE_ORIG_HOST="{HOST}"\n'
+                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
             )
         ),
     ]
@@ -132,8 +131,7 @@ def test_cylc_install_files(fixture_install_flow, file_, expect, version_info):
                 '[env]\n'
                 f'BAR=2\n#{ROHIOS}\n'
                 f'ROSE_ORIG_HOST={HOST}\n'
-                f'\n[template variables]\n#{ROHIOS}'
-                f'\nROSE_ORIG_HOST="{HOST}"\n'
+                f'\n[template variables]\n#{ROHIOS}\nROSE_ORIG_HOST={HOST}\n'
             )
         )
     ]
diff --git a/tests/unit/test_fileinstall.py b/tests/unit/test_fileinstall.py
index 4949a5e..62eee56 100644
--- a/tests/unit/test_fileinstall.py
+++ b/tests/unit/test_fileinstall.py
@@ -109,11 +109,11 @@ def test_rose_fileinstall_rose_suite_cylc_install_conf(
         "[env]\n"
         "FOO=42\n"
         f"#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n"
-        f'ROSE_ORIG_HOST={host}\n\n'
+        f"ROSE_ORIG_HOST={host}\n\n"
         "[jinja2:suite.rc]\n"
         "BAR=84\n"
         "CORNETTO=120\n"
         "FLAKE=99\n"
         f"#{ROSE_ORIG_HOST_INSTALLED_OVERRIDE_STRING}\n"
-        f'ROSE_ORIG_HOST="{host}"\n'
+        f"ROSE_ORIG_HOST={host}\n"
     )