diff --git a/command/agent/http.go b/command/agent/http.go
index f6475c409..bf2f95b78 100644
--- a/command/agent/http.go
+++ b/command/agent/http.go
@@ -175,8 +175,10 @@ func (s *HTTPServer) wrap(handler func(resp http.ResponseWriter, req *http.Reque
 		}
 
 		prettyPrint := false
-		if _, ok := req.URL.Query()["pretty"]; ok {
-			prettyPrint = true
+		if v, ok := req.URL.Query()["pretty"]; ok {
+			if len(v) > 0 && (len(v[0]) == 0 || v[0] != "0") {
+				prettyPrint = true
+			}
 		}
 
 		// Write out the JSON object
diff --git a/command/agent/http_test.go b/command/agent/http_test.go
index 14fbd085f..634e7f689 100644
--- a/command/agent/http_test.go
+++ b/command/agent/http_test.go
@@ -171,9 +171,12 @@ func testPrettyPrint(pretty string, prettyFmt bool, t *testing.T) {
 	req, _ := http.NewRequest("GET", urlStr, nil)
 	s.Server.wrap(handler)(resp, req)
 
-	expected, _ := json.MarshalIndent(r, "", "    ")
+	var expected []byte
 	if prettyFmt {
+		expected, _ = json.MarshalIndent(r, "", "    ")
 		expected = append(expected, "\n"...)
+	} else {
+		expected, _ = json.Marshal(r)
 	}
 	actual, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
@@ -181,7 +184,7 @@ func testPrettyPrint(pretty string, prettyFmt bool, t *testing.T) {
 	}
 
 	if !bytes.Equal(expected, actual) {
-		t.Fatalf("bad: %q", string(actual))
+		t.Fatalf("bad:\nexpected:\t%q\nactual:\t\t%q", string(expected), string(actual))
 	}
 }