diff --git a/azurerm/internal/services/cognitive/cognitive_account_resource.go b/azurerm/internal/services/cognitive/cognitive_account_resource.go
index b2e469129f5d..09ec363a683f 100644
--- a/azurerm/internal/services/cognitive/cognitive_account_resource.go
+++ b/azurerm/internal/services/cognitive/cognitive_account_resource.go
@@ -96,7 +96,7 @@ func resourceArmCognitiveAccount() *schema.Resource {
 				Type:     schema.TypeString,
 				Required: true,
 				ValidateFunc: validation.StringInSlice([]string{
-					"F0", "F1", "S0", "S1", "S2", "S3", "S4", "S5", "S6", "P0", "P1", "P2",
+					"F0", "F1", "S0", "S", "S1", "S2", "S3", "S4", "S5", "S6", "P0", "P1", "P2",
 				}, false),
 			},
 
diff --git a/website/docs/r/cognitive_account.html.markdown b/website/docs/r/cognitive_account.html.markdown
index b7567a8fbfdd..989b3cb3d257 100644
--- a/website/docs/r/cognitive_account.html.markdown
+++ b/website/docs/r/cognitive_account.html.markdown
@@ -44,7 +44,7 @@ The following arguments are supported:
 
 * `kind` - (Required) Specifies the type of Cognitive Service Account that should be created. Possible values are `Academic`, `AnomalyDetector`, `Bing.Autosuggest`, `Bing.Autosuggest.v7`, `Bing.CustomSearch`, `Bing.Search`, `Bing.Search.v7`, `Bing.Speech`, `Bing.SpellCheck`, `Bing.SpellCheck.v7`, `CognitiveServices`, `ComputerVision`, `ContentModerator`, `CustomSpeech`, `CustomVision.Prediction`, `CustomVision.Training`, `Emotion`, `Face`,`FormRecognizer`, `ImmersiveReader`, `LUIS`, `LUIS.Authoring`, `QnAMaker`, `Recommendations`, `SpeakerRecognition`, `Speech`, `SpeechServices`, `SpeechTranslation`, `TextAnalytics`, `TextTranslation` and `WebLM`. Changing this forces a new resource to be created.
 
-* `sku_name` - (Required) Specifies the SKU Name for this Cognitive Service Account. Possible values are `F0`, `F1`, `S0`, `S1`, `S2`, `S3`, `S4`, `S5`, `S6`, `P0`, `P1`, and `P2`.
+* `sku_name` - (Required) Specifies the SKU Name for this Cognitive Service Account. Possible values are `F0`, `F1`, `S`, `S0`, `S1`, `S2`, `S3`, `S4`, `S5`, `S6`, `P0`, `P1`, and `P2`.
 
 * `qna_runtime_endpoint` - (Optional) A URL to link a QnAMaker cognitive account to a QnA runtime.