diff --git a/languages/Language.php b/languages/Language.php
index 35fcaf2c32c..1cef0ca3df4 100644
--- a/languages/Language.php
+++ b/languages/Language.php
@@ -3334,11 +3334,23 @@ class Language {
 				// supports. Example: arq. Also, languages like pl has
 				// customisation.  So manually set it.
 				if ( $noTranslate ) {
-					$fmt->setSymbol( NumberFormatter::DECIMAL_SEPARATOR_SYMBOL, '.' );
-					$fmt->setSymbol( NumberFormatter::GROUPING_SEPARATOR_SYMBOL, ',' );
+					$fmt->setSymbol(
+						NumberFormatter::DECIMAL_SEPARATOR_SYMBOL,
+						'.'
+					);
+					$fmt->setSymbol(
+						NumberFormatter::GROUPING_SEPARATOR_SYMBOL,
+						','
+					);
 				} elseif ( $separatorTransformTable ) {
-					$fmt->setSymbol( NumberFormatter::DECIMAL_SEPARATOR_SYMBOL, $separatorTransformTable[ '.' ] );
-					$fmt->setSymbol( NumberFormatter::GROUPING_SEPARATOR_SYMBOL, $separatorTransformTable[ ',' ] );
+					$fmt->setSymbol(
+						NumberFormatter::DECIMAL_SEPARATOR_SYMBOL,
+						$separatorTransformTable[ '.' ] ?? '.'
+					);
+					$fmt->setSymbol(
+						NumberFormatter::GROUPING_SEPARATOR_SYMBOL,
+						$separatorTransformTable[ ',' ] ?? ','
+					);
 				}
 
 				// Maintain # of digits before and after the decimal point
diff --git a/languages/classes/LanguageKm.php b/languages/classes/LanguageKm.php
index 166adc910db..22965b2b5c9 100644
--- a/languages/classes/LanguageKm.php
+++ b/languages/classes/LanguageKm.php
@@ -30,16 +30,16 @@
 class LanguageKm extends Language {
 
 	/**
-	 * @param string $_
-	 * @param bool|null $noSeparator
+	 * @param string $number
+	 * @param bool|null $noSeparators
 	 * @return string
 	 */
-	public function formatNum( $_, $noSeparator = null ) {
+	public function formatNum( $number, $noSeparators = null ) {
 		/* NO-op for Khmer. Cannot use
 		 * $separatorTransformTable = [ ',' => '' ]
 		 * That would break when parsing and doing strstr '' => 'foo';
 		 */
-		return $_;
+		return $this->formatNumNoSeparators( $number );
 	}
 
 }
diff --git a/languages/classes/LanguageMy.php b/languages/classes/LanguageMy.php
index 3d41ccac913..e55a921f7ba 100644
--- a/languages/classes/LanguageMy.php
+++ b/languages/classes/LanguageMy.php
@@ -30,15 +30,15 @@
 class LanguageMy extends Language {
 
 	/**
-	 * @param string $_
-	 * @param bool|null $noSeparator
+	 * @param string $number
+	 * @param bool|null $noSeparators
 	 * @return string
 	 */
-	public function formatNum( $_, $noSeparator = null ) {
+	public function formatNum( $number, $noSeparators = null ) {
 		/* NO-op. Cannot use
 		 * $separatorTransformTable = [ ',' => '' ]
 		 * That would break when parsing and doing strstr '' => 'foo';
 		 */
-		return $_;
+		return $this->formatNumNoSeparators( $number );
 	}
 }
diff --git a/languages/messages/MessagesLa.php b/languages/messages/MessagesLa.php
index 9e10d132525..5055ec8c139 100644
--- a/languages/messages/MessagesLa.php
+++ b/languages/messages/MessagesLa.php
@@ -51,7 +51,7 @@ $namespaceAliases = [
 	'Disputatio_Imaginis' => NS_FILE_TALK,
 ];
 
-$separatorTransformTable = [ ',' => "\u{00A0}" ];
+$separatorTransformTable = [ ',' => "\u{00A0}", '.' => '.' ];
 
 $dateFormats = [
 	'mdy time' => 'H:i',