diff --git a/cmd/cue/cmd/testdata/script/def_jsonschema.txtar b/cmd/cue/cmd/testdata/script/def_jsonschema.txtar
index 474f09973..f68cc3b97 100644
--- a/cmd/cue/cmd/testdata/script/def_jsonschema.txtar
+++ b/cmd/cue/cmd/testdata/script/def_jsonschema.txtar
@@ -5,7 +5,10 @@ cmp stdout expect-stdout
 exec cue def schema.json -p schema -l '#Person:'
 cmp stdout expect-stdout
 
-exec cue def jsonschema: bad.json
+! exec cue def jsonschema: bad.json
+cmp stderr expect-stderr-strict-features
+
+exec cue def jsonschema+strictFeatures=0: bad.json
 
 ! exec cue def jsonschema: bad.json --strict
 cmp stderr expect-stderr
diff --git a/internal/filetypes/filetypes_test.go b/internal/filetypes/filetypes_test.go
index c069bffa5..c929097ae 100644
--- a/internal/filetypes/filetypes_test.go
+++ b/internal/filetypes/filetypes_test.go
@@ -180,7 +180,7 @@ func TestFromFile(t *testing.T) {
 				Form:           build.Schema,
 				BoolTags: map[string]bool{
 					"strict":         false,
-					"strictFeatures": false,
+					"strictFeatures": true,
 					"strictKeywords": false,
 				},
 			},
@@ -418,7 +418,7 @@ func TestParseArgs(t *testing.T) {
 				Interpretation: "jsonschema",
 				BoolTags: map[string]bool{
 					"strict":         false,
-					"strictFeatures": false,
+					"strictFeatures": true,
 					"strictKeywords": false,
 				},
 			},
@@ -438,6 +438,21 @@ func TestParseArgs(t *testing.T) {
 				},
 			},
 		},
+	}, {
+		in: "jsonschema+strictFeatures=0: bar.schema",
+		out: []*build.File{
+			{
+				Filename:       "bar.schema",
+				Encoding:       "json",
+				Interpretation: "jsonschema",
+				Form:           build.Schema,
+				BoolTags: map[string]bool{
+					"strict":         false,
+					"strictFeatures": false,
+					"strictKeywords": false,
+				},
+			},
+		},
 	}, {
 		in: `json: c:\foo.json c:\path\to\file.dat`,
 		out: []*build.File{
diff --git a/internal/filetypes/types.cue b/internal/filetypes/types.cue
index 3ce0a11b4..c4762542b 100644
--- a/internal/filetypes/types.cue
+++ b/internal/filetypes/types.cue
@@ -267,7 +267,7 @@ interpretations: jsonschema: {
 	boolTags: {
 		strict:         *false | bool
 		strictKeywords: *strict | bool
-		strictFeatures: *strict | bool
+		strictFeatures: *true | bool
 	}
 }