diff --git a/admin/api/settings.go b/admin/api/settings.go
index ee278980..56dce502 100644
--- a/admin/api/settings.go
+++ b/admin/api/settings.go
@@ -316,6 +316,7 @@ func ApplySettings(config *settings.Settings) {
 	fic.UnlockedChallengeDepth = config.UnlockedChallengeDepth
 	fic.UnlockedChallengeUpTo = config.UnlockedChallengeUpTo
 	fic.DisplayAllFlags = config.DisplayAllFlags
+	fic.HideCaseSensitivity = config.HideCaseSensitivity
 	fic.DisplayMCQBadCount = config.DisplayMCQBadCount
 	fic.FirstBlood = config.FirstBlood
 	fic.SubmissionCostBase = config.SubmissionCostBase
diff --git a/admin/static/views/settings.html b/admin/static/views/settings.html
index a052caa7..774d5d03 100644
--- a/admin/static/views/settings.html
+++ b/admin/static/views/settings.html
@@ -225,6 +225,13 @@
         </label>
       </div>
 
+      <div class="form-check">
+        <label class="custom-control custom-checkbox">
+	  <input class="custom-control-input" type="checkbox" ng-model="config.hideCaseSensitivity">
+	  <span class="custom-control-label" ng-class="{'text-primary font-weight-bold': !config.hideCaseSensitivity != !dist_config.hideCaseSensitivity}">Ne pas informer sur la sensibilité à la casse des flags</span>
+        </label>
+      </div>
+
       <div class="form-check">
         <label class="custom-control custom-checkbox">
 	  <input class="custom-control-input" type="checkbox" ng-model="config.submissionUniqueness">
diff --git a/frontend/fic/src/lib/components/FlagKey.svelte b/frontend/fic/src/lib/components/FlagKey.svelte
index 9c0d91a4..4416a4d8 100644
--- a/frontend/fic/src/lib/components/FlagKey.svelte
+++ b/frontend/fic/src/lib/components/FlagKey.svelte
@@ -1,5 +1,6 @@
 <script>
  import {
+     Badge,
      Button,
      Icon,
      Spinner,
@@ -115,6 +116,15 @@
     {#if flag.found && flag.value}
         <span>{flag.value}</span>
     {/if}
+    {#if !flag.found && !$settings.hideCaseSensitivity && !flag.ignore_case}
+        <Badge
+            class="float-end"
+            color="danger"
+            title="Ce flag est sensible à la casse !"
+        >
+            aA
+        </Badge>
+    {/if}
     {#if !flag.found}
         {#each values as v, index}
             {#if !flag.choices}
diff --git a/generator/main.go b/generator/main.go
index 8b577d9c..708406f8 100644
--- a/generator/main.go
+++ b/generator/main.go
@@ -30,7 +30,7 @@ func reloadSettings(config *settings.Settings) {
 	fic.WChoiceCoefficient = config.WChoiceCurCoefficient
 	fic.ExerciceCurrentCoefficient = config.ExerciceCurCoefficient
 	ChStarted = config.Start.Unix() > 0 && time.Since(config.Start) >= 0
-	if allowRegistration != config.AllowRegistration || fic.PartialValidation != config.PartialValidation || fic.UnlockedChallengeDepth != config.UnlockedChallengeDepth || fic.UnlockedChallengeUpTo != config.UnlockedChallengeUpTo || fic.DisplayAllFlags != config.DisplayAllFlags || fic.FirstBlood != config.FirstBlood || fic.SubmissionCostBase != config.SubmissionCostBase || fic.SubmissionUniqueness != config.SubmissionUniqueness || fic.DiscountedFactor != config.DiscountedFactor {
+	if allowRegistration != config.AllowRegistration || fic.PartialValidation != config.PartialValidation || fic.UnlockedChallengeDepth != config.UnlockedChallengeDepth || fic.UnlockedChallengeUpTo != config.UnlockedChallengeUpTo || fic.DisplayAllFlags != config.DisplayAllFlags || fic.FirstBlood != config.FirstBlood || fic.SubmissionCostBase != config.SubmissionCostBase || fic.SubmissionUniqueness != config.SubmissionUniqueness || fic.DiscountedFactor != config.DiscountedFactor || fic.HideCaseSensitivity != config.HideCaseSensitivity {
 		allowRegistration = config.AllowRegistration
 
 		fic.PartialValidation = config.PartialValidation
@@ -43,6 +43,7 @@ func reloadSettings(config *settings.Settings) {
 		fic.SubmissionUniqueness = config.SubmissionUniqueness
 		fic.GlobalScoreCoefficient = config.GlobalScoreCoefficient
 		fic.CountOnlyNotGoodTries = config.CountOnlyNotGoodTries
+		fic.HideCaseSensitivity = config.HideCaseSensitivity
 		fic.DiscountedFactor = config.DiscountedFactor
 
 		if !skipInitialGeneration {
diff --git a/libfic/team_my.go b/libfic/team_my.go
index 25b48cad..95c15618 100644
--- a/libfic/team_my.go
+++ b/libfic/team_my.go
@@ -19,6 +19,9 @@ var DisplayAllFlags bool
 // DisplayMCQBadCount activates the report of MCQ bad responses counter.
 var DisplayMCQBadCount bool
 
+// HideCaseSensitivity never tells the user if the flag is case sensitive or not.
+var HideCaseSensitivity bool
+
 type myTeamFile struct {
 	Path       string `json:"path"`
 	Name       string `json:"name"`
@@ -274,8 +277,13 @@ func MyJSONTeam(t *Team, started bool) (interface{}, error) {
 								flag.IgnoreCase = k.IgnoreCase
 								flag.CaptureRe = k.CaptureRegexp
 								flag.Soluce = hex.EncodeToString(k.Checksum)
-							} else if PartialValidation {
-								flag.Solved = t.HasPartiallySolved(k)
+							} else {
+								if PartialValidation {
+									flag.Solved = t.HasPartiallySolved(k)
+								}
+								if !HideCaseSensitivity {
+									flag.IgnoreCase = k.IgnoreCase
+								}
 							}
 
 							flag.Multiline = k.Multiline
diff --git a/settings/settings.go b/settings/settings.go
index c0be3fd8..032ecd68 100644
--- a/settings/settings.go
+++ b/settings/settings.go
@@ -77,6 +77,8 @@ type Settings struct {
 	CountOnlyNotGoodTries bool `json:"countOnlyNotGoodTries,omitempty"`
 	// DisplayAllFlags doesn't respect the predefined constraint existing between flags.
 	DisplayAllFlags bool `json:"displayAllFlags,omitempty"`
+	// HideCaseSensitivity never tells the user if the flag is case sensitive or not.
+	HideCaseSensitivity bool `json:"hideCaseSensitivity,omitempty"`
 	// DisplayMCQBadCount activates the report of MCQ bad responses counter.
 	DisplayMCQBadCount bool `json:"displayMCQBadCount,omitempty"`
 	// EventKindness will ask browsers to delay notification interval.