diff --git a/src/libespeak-ng/espeak_api.c b/src/libespeak-ng/espeak_api.c
index 10ae085e..0497b50c 100644
--- a/src/libespeak-ng/espeak_api.c
+++ b/src/libespeak-ng/espeak_api.c
@@ -126,12 +126,12 @@ ESPEAK_API espeak_ERROR espeak_SetPunctuationList(const wchar_t *punctlist)
 
 ESPEAK_API espeak_ERROR espeak_SetVoiceByName(const char *name)
 {
-	return status_to_espeak_error(espeak_SetVoiceByName(name));
+	return status_to_espeak_error(espeak_ng_SetVoiceByName(name));
 }
 
 ESPEAK_API espeak_ERROR espeak_SetVoiceByProperties(espeak_VOICE *voice_selector)
 {
-	return status_to_espeak_error(espeak_SetVoiceByProperties(voice_selector));
+	return status_to_espeak_error(espeak_ng_SetVoiceByProperties(voice_selector));
 }
 
 ESPEAK_API espeak_ERROR espeak_Cancel(void)