diff --git a/src/main/java/org/gridsuite/modification/server/modifications/ByFormulaModification.java b/src/main/java/org/gridsuite/modification/server/modifications/ByFormulaModification.java
index eb1ecc8aa..a6b0a140c 100644
--- a/src/main/java/org/gridsuite/modification/server/modifications/ByFormulaModification.java
+++ b/src/main/java/org/gridsuite/modification/server/modifications/ByFormulaModification.java
@@ -92,7 +92,7 @@ private void applyFormulaOnFilterEquipments(Network network,
 
         formulaReports.add(Report.builder()
                 .withKey("byFormulaModificationFormulaFilter_" + formulaReports.size())
-                .withDefaultMessage(String.format("    successful application of new modification by formula on filter %s",
+                .withDefaultMessage(String.format("Successful application of new modification by formula on filter %s",
                         filterInfos.getName()))
                 .withSeverity(TypedValue.INFO_SEVERITY)
                 .build());