diff --git a/modules/server/containers/apps/favicon.nix b/modules/server/containers/apps/favicon.nix
index 77b8aaf..78b19e7 100644
--- a/modules/server/containers/apps/favicon.nix
+++ b/modules/server/containers/apps/favicon.nix
@@ -139,22 +139,24 @@ let
         return None, DEFAULT_PROFILE
 
     def _replace_svg_color(svg, attribute, color):
-        if attribute in {"fill", "stroke"}:
-            svg = re.sub(
-                rf'{attribute}="(?!none\\b)[^"]*"',
-                f'{attribute}="{color}"',
-                svg,
-                flags=re.IGNORECASE,
-            )
-            svg = re.sub(
-                rf"{attribute}='(?!none\\b)[^']*'",
-                f"{attribute}='{color}'",
-                svg,
-                flags=re.IGNORECASE,
-            )
+        if attribute not in {"fill", "stroke"}:
+            return svg
+
+        svg = re.sub(
+            rf'({attribute}\\s*=\\s*")(?!none\\b)[^"]*(")',
+            rf"\\1{color}\\2",
+            svg,
+            flags=re.IGNORECASE,
+        )
+        svg = re.sub(
+            rf"({attribute}\\s*=\\s*')(?!none\\b)[^']*(')",
+            rf"\\1{color}\\2",
+            svg,
+            flags=re.IGNORECASE,
+        )
         return re.sub(
-            rf"{attribute}\\s*:\\s*(?!none\\b)[^;\"\\']+",
-            f"{attribute}:{color}",
+            rf"({attribute}\\s*:\\s*)(?!none\\b)[^;\"']+",
+            rf"\\1{color}",
             svg,
             flags=re.IGNORECASE,
         )