diff --git a/packages/loot-core/src/shared/util.ts b/packages/loot-core/src/shared/util.ts
index b4d64754853..6e744c8a75a 100644
--- a/packages/loot-core/src/shared/util.ts
+++ b/packages/loot-core/src/shared/util.ts
@@ -219,7 +219,7 @@ export function getNumberFormat({ format, hideFraction } = numberFormatConfig) {
 
   switch (format) {
     case 'space-comma':
-      locale = 'en-ZA';
+      locale = 'en-SE';
       regex = /[^-0-9,]/g;
       separator = ',';
       break;
diff --git a/upcoming-release-notes/1938.md b/upcoming-release-notes/1938.md
new file mode 100644
index 00000000000..c4be10c78b1
--- /dev/null
+++ b/upcoming-release-notes/1938.md
@@ -0,0 +1,6 @@
+---
+category: Bugfix
+authors: [twk3]
+---
+
+Fix space-comma format for newer NodeJS versions (18.18, and 21.x), fixes #1937
\ No newline at end of file