diff --git a/pkg/synthesizer/speakers/piper.go b/pkg/synthesizer/speakers/piper.go
index 1232b293..10dfcb4d 100644
--- a/pkg/synthesizer/speakers/piper.go
+++ b/pkg/synthesizer/speakers/piper.go
@@ -1,3 +1,5 @@
+//go:build !darwin
+
 package speakers
 
 import (
diff --git a/pkg/synthesizer/speakers/piper_darwin.go b/pkg/synthesizer/speakers/piper_darwin.go
new file mode 100644
index 00000000..4e0e5549
--- /dev/null
+++ b/pkg/synthesizer/speakers/piper_darwin.go
@@ -0,0 +1,13 @@
+//go:build darwin
+
+package speakers
+
+import (
+	"time"
+
+	"github.com/dharmab/skyeye/pkg/synthesizer/voices"
+)
+
+func NewPiperSpeaker(_ voices.Voice, _ float64, _ time.Duration) (Speaker, error) {
+	panic("unreachable: piper is not used on macOS")
+}