1 files changed, 17 insertions, 6 deletions

diff --git a/archinstall/lib/pacman/config.py b/archinstall/lib/pacman/config.py
index 60d202bc..6686f4a9 100644
--- a/archinstall/lib/pacman/config.py
+++ b/archinstall/lib/pacman/config.py
@@ -10,24 +10,35 @@ class Config:
 	def __init__(self, target: Path):
 		self.path = Path("/etc") / "pacman.conf"
 		self.chroot_path = target / "etc" / "pacman.conf"
-		self.patterns: List[re.Pattern] = []
+		self.repos: List[Repo] = []
 
 	def enable(self, repo: Repo):
-		self.patterns.append(re.compile(r"^#\s*\[{}\]$".format(repo.value)))
+		self.repos.append(repo)
 
 	def apply(self):
-		if not self.patterns:
+		if not self.repos:
 			return
+
+		if Repo.Testing in self.repos:
+			if Repo.Multilib in self.repos:
+				repos_pattern = f'({Repo.Multilib.value}|.+-{Repo.Testing.value})'
+			else:
+				repos_pattern = f'(?!{Repo.Multilib.value}).+-{Repo.Testing.value}'
+		else:
+			repos_pattern = Repo.Multilib.value
+
+		pattern = re.compile(rf"^#\s*\[{repos_pattern}\]$")
+
 		lines = iter(self.path.read_text().splitlines(keepends=True))
 		with open(self.path, 'w') as f:
 			for line in lines:
-				if any(pattern.match(line) for pattern in self.patterns):
+				if pattern.match(line):
 					# Uncomment this line and the next.
 					f.write(line.lstrip('#'))
 					f.write(next(lines).lstrip('#'))
 				else:
 					f.write(line)
-	
+
 	def persist(self):
-		if self.patterns:
+		if self.repos:
 			copy2(self.path, self.chroot_path)