diff --git a/src/libespeak-ng/event.c b/src/libespeak-ng/event.c
index 2d0ef11c..78b85045 100644
--- a/src/libespeak-ng/event.c
+++ b/src/libespeak-ng/event.c
@@ -36,7 +36,6 @@
 
 #include "speech.h"
 #include "event.h"
-#include "wave.h"
 
 // my_mutex: protects my_thread_is_talking,
 static pthread_mutex_t my_mutex;
diff --git a/src/libespeak-ng/event.h b/src/libespeak-ng/event.h
index 0cf43a67..226d3c2a 100644
--- a/src/libespeak-ng/event.h
+++ b/src/libespeak-ng/event.h
@@ -61,6 +61,10 @@ espeak_ng_STATUS event_declare(espeak_EVENT *event);
 // Last function to be called.
 void event_terminate();
 
+// general functions
+void clock_gettime2(struct timespec *ts);
+void add_time_in_ms(struct timespec *ts, int time_in_ms);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/libespeak-ng/fifo.c b/src/libespeak-ng/fifo.c
index 3410d154..583deda5 100644
--- a/src/libespeak-ng/fifo.c
+++ b/src/libespeak-ng/fifo.c
@@ -37,7 +37,7 @@
 #include "speech.h"
 #include "espeak_command.h"
 #include "fifo.h"
-#include "wave.h"
+#include "event.h"
 
 // my_mutex: protects my_thread_is_talking,
 // my_stop_is_required, and the command fifo
diff --git a/src/libespeak-ng/synthdata.c b/src/libespeak-ng/synthdata.c
index 2f356de0..94e0ea06 100644
--- a/src/libespeak-ng/synthdata.c
+++ b/src/libespeak-ng/synthdata.c
@@ -37,7 +37,6 @@
 #include "synthesize.h"
 #include "voice.h"
 #include "translate.h"
-#include "wave.h"
 
 const char *version_string = "1.48.15  16.Apr.15";
 const int version_phdata  = 0x014801;
diff --git a/src/libespeak-ng/wave.h b/src/libespeak-ng/wave.h
index 554dffef..544e089f 100644
--- a/src/libespeak-ng/wave.h
+++ b/src/libespeak-ng/wave.h
@@ -31,10 +31,6 @@ extern int wave_close(void *theHandler);
 extern void wave_flush(void *theHandler);
 extern void wave_terminate();
 
-// general functions
-extern void clock_gettime2(struct timespec *ts);
-extern void add_time_in_ms(struct timespec *ts, int time_in_ms);
-
 #ifdef __cplusplus
 }
 #endif