diff --git a/src/index.mjs b/src/index.mjs
index 14f7638..9c2051f 100644
--- a/src/index.mjs
+++ b/src/index.mjs
@@ -8,21 +8,21 @@ import {diff} from './util.mjs';
  * Matches an empty `id-edb` infobox parameter which can just have a value
  * inserted after it.
  */
-const existingEmptyEDBIDParameter = /^(\s*\|\s*id-edb\s*=)\s*$/m;
+const existingEmptyEDBIDParameter = /^( *\| *id-edb *=) *$/m;
 
 /**
  * Matches an `id-gt` infobox parameter above which we can insert an `id-edb`
  * parameter. Whitespace in capture groups so the inserted parameter can use the
  * exact same formatting.
  */
-const existingGTIDParameter = /^(\s*)\|(\s*)id-gt(\s*)=(\s*).*$/m;
+const existingGTIDParameter = /^( *)\|( *)id-gt( *)=( *).*$/m;
 
 /**
  * Matches a `release` infobox parameter below which we can insert an `id-edb`
  * parameter. Whitespace in capture groups so the inserted parameter can use the
  * exact same formatting.
  */
-const existingReleaseParameter = /^(\s*)\|(\s*)release(\s*)=(\s*).*$/m;
+const existingReleaseParameter = /^( *)\|( *)release( *)=( *).*$/m;
 
 /**
  * Inserts the `id-edb` item infobox parameter into the given page contents.