diff --git a/internal/apiquery/encoder.go b/internal/apiquery/encoder.go
index 0d09dee..338140c 100644
--- a/internal/apiquery/encoder.go
+++ b/internal/apiquery/encoder.go
@@ -135,13 +135,16 @@ func (e *encoder) encodePrimitive(key string, value reflect.Value) ([]Pair, erro
 		}
 		return []Pair{{key, "false"}}, nil
 
-	case reflect.Int, reflect.Int16, reflect.Int32, reflect.Int64:
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		return []Pair{{key, strconv.FormatInt(value.Int(), 10)}}, nil
 
-	case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
 		return []Pair{{key, strconv.FormatUint(value.Uint(), 10)}}, nil
 
-	case reflect.Float32, reflect.Float64:
+	case reflect.Float32:
+		return []Pair{{key, strconv.FormatFloat(value.Float(), 'f', -1, 32)}}, nil
+
+	case reflect.Float64:
 		return []Pair{{key, strconv.FormatFloat(value.Float(), 'f', -1, 64)}}, nil
 
 	default:
diff --git a/internal/apiquery/query_test.go b/internal/apiquery/query_test.go
index 3791ec9..2acc28b 100644
--- a/internal/apiquery/query_test.go
+++ b/internal/apiquery/query_test.go
@@ -25,10 +25,22 @@ func TestEncode(t *testing.T) {
 			val: 42,
 			enc: "query=42",
 		},
+		"int8": {
+			val: int8(-8),
+			enc: "query=-8",
+		},
+		"uint8": {
+			val: uint8(8),
+			enc: "query=8",
+		},
 		"float": {
 			val: 3.14,
 			enc: "query=3.14",
 		},
+		"float32": {
+			val: float32(0.1),
+			enc: "query=0.1",
+		},
 		"bool": {
 			val: true,
 			enc: "query=true",