diff --git a/.changelog/17752.txt b/.changelog/17752.txt
new file mode 100644
index 00000000000..f7589b6efc4
--- /dev/null
+++ b/.changelog/17752.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+data-source/aws_iam_policy_document: Keep empty conditions
+```
diff --git a/aws/data_source_aws_iam_policy_document.go b/aws/data_source_aws_iam_policy_document.go
index f8521c480fe..04b7fc14dcd 100644
--- a/aws/data_source_aws_iam_policy_document.go
+++ b/aws/data_source_aws_iam_policy_document.go
@@ -311,7 +311,7 @@ func dataSourceAwsIamPolicyDocumentMakeConditions(in []interface{}, version stri
 			Variable: item["variable"].(string),
 		}
 		out[i].Values, err = dataSourceAwsIamPolicyDocumentReplaceVarsInList(
-			aws.StringValueSlice(expandStringList(item["values"].([]interface{}))),
+			aws.StringValueSlice(expandStringListKeepEmpty(item["values"].([]interface{}))),
 			version,
 		)
 		if err != nil {
diff --git a/aws/data_source_aws_iam_policy_document_test.go b/aws/data_source_aws_iam_policy_document_test.go
index 8ac7a72c49d..d9af7a3112a 100644
--- a/aws/data_source_aws_iam_policy_document_test.go
+++ b/aws/data_source_aws_iam_policy_document_test.go
@@ -312,6 +312,7 @@ data "aws_iam_policy_document" "test" {
       variable = "s3:prefix"
       values = [
         "home/",
+        "",
         "home/&{aws:username}/",
       ]
     }
@@ -394,6 +395,7 @@ func testAccAWSIAMPolicyDocumentExpectedJSON() string {
         "StringLike": {
           "s3:prefix": [
             "home/",
+            "",
             "home/${aws:username}/"
           ]
         }
diff --git a/aws/structure.go b/aws/structure.go
index 1781aa7bb81..6c715cc8203 100644
--- a/aws/structure.go
+++ b/aws/structure.go
@@ -983,6 +983,16 @@ func expandStringList(configured []interface{}) []*string {
 	return vs
 }
 
+func expandStringListKeepEmpty(configured []interface{}) []*string {
+	vs := make([]*string, 0, len(configured))
+	for _, v := range configured {
+		if val, ok := v.(string); ok {
+			vs = append(vs, aws.String(val))
+		}
+	}
+	return vs
+}
+
 // Takes the result of flatmap.Expand for an array of int64
 // and returns a []*int64
 func expandInt64List(configured []interface{}) []*int64 {