diff --git a/lib/private/Repair/RepairMimeTypes.php b/lib/private/Repair/RepairMimeTypes.php
index a9ef95b50c28e..cd8c610c3b037 100644
--- a/lib/private/Repair/RepairMimeTypes.php
+++ b/lib/private/Repair/RepairMimeTypes.php
@@ -389,13 +389,11 @@ public function migrationsAvailable(): bool {
 	 * Get the current mimetype version
 	 */
 	private function getMimeTypeVersion(): string {
-		$serverVersion = $this->config->getSystemValueString('version', '0.0.0');
-		// 29.0.0.10 is the last version with a mimetype migration before it was moved to a separate version number
-		if (version_compare($serverVersion, '29.0.0.10', '>')) {
-			return $this->appConfig->getValueString('files', 'mimetype_version', '29.0.0.10');
-		}
-
-		return $serverVersion;
+		// 29.0.0.10 is the last version with a mimetype migration before tracking was moved to mimetype_version.
+		// However since it's possible that someone may have upgraded without running expensive repair steps prior 
+		// to 29.0.0.10, we assume none have been ran (once). This is acceptable since (a) only happens when expensive 
+		// repair steps are explicitly requested; (b) only happens once *ever* in a given environment.
+		return $this->appConfig->getValueString('files', 'mimetype_version', '0.0.0');
 	}
 
 	/**
diff --git a/lib/private/Setup.php b/lib/private/Setup.php
index efdbd1cfd6c57..8536321677a4d 100644
--- a/lib/private/Setup.php
+++ b/lib/private/Setup.php
@@ -508,6 +508,10 @@ public function install(array $options, ?IOutput $output = null): array {
 			}
 		}
 
+		// Seed the mimetype_version for future mimetype repair jobs with the install-time version
+		$serverVersion = $config->getSystemValueString('version', '0.0.0');
+		$appConfig->setValueString('files', 'mimetype_version', $serverVersion);
+
 		// Dispatch installation completed event
 		$adminUsername = !$disableAdminUser ? ($options['adminlogin'] ?? null) : null;
 		$adminEmail = !empty($options['adminemail']) ? $options['adminemail'] : null;