diff --git a/tools/check/forbidden_strings_in_code.txt b/tools/check/forbidden_strings_in_code.txt
index a5127dc8aa..567e24a849 100644
--- a/tools/check/forbidden_strings_in_code.txt
+++ b/tools/check/forbidden_strings_in_code.txt
@@ -161,7 +161,7 @@ Formatter\.formatShortFileSize===1
 # android\.text\.TextUtils
 
 ### This is not a rule, but a warning: the number of "enum class" has changed. For Json classes, it is mandatory that they have `@JsonClass(generateAdapter = false)`. If the enum is not used as a Json class, change the value in file forbidden_strings_in_code.txt
-enum class===89
+enum class===90
 
 ### Do not import temporary legacy classes
 import org.matrix.android.sdk.internal.legacy.riot===3