diff --git a/android/jni/Android.mk b/android/jni/Android.mk
index 4da69895..27f0b9ba 100644
--- a/android/jni/Android.mk
+++ b/android/jni/Android.mk
@@ -22,6 +22,7 @@ ESPEAK_SOURCES := \
   src/libespeak-ng/intonation.c \
   src/libespeak-ng/klatt.c \
   src/libespeak-ng/numbers.c \
+  src/libespeak-ng/phoneme.c \
   src/libespeak-ng/phonemelist.c \
   src/libespeak-ng/readclause.c \
   src/libespeak-ng/setlengths.c \