diff --git a/media/libcubeb/src/cubeb_audiotrack.c b/media/libcubeb/src/cubeb_audiotrack.c
index a221906b638..ac6f221c89d 100644
--- a/media/libcubeb/src/cubeb_audiotrack.c
+++ b/media/libcubeb/src/cubeb_audiotrack.c
@@ -298,7 +298,7 @@ audiotrack_get_min_latency(cubeb * ctx, cubeb_stream_params params, uint32_t * l
    * audiotrack_stream_init), so this value is not going to be used. */
   int rv;
 
-  rv = audiotrack_get_min_frame_count(ctx, &params, latency_ms);
+  rv = audiotrack_get_min_frame_count(ctx, &params, (int *)latency_ms);
   if (rv != CUBEB_OK) {
     return CUBEB_ERROR;
   }
@@ -347,7 +347,7 @@ audiotrack_stream_init(cubeb * ctx, cubeb_stream ** stream, char const * stream_
     return CUBEB_ERROR_INVALID_FORMAT;
   }
 
-  if (audiotrack_get_min_frame_count(ctx, &stream_params, &min_frame_count)) {
+  if (audiotrack_get_min_frame_count(ctx, &stream_params, (int *)&min_frame_count)) {
     return CUBEB_ERROR;
   }
 
diff --git a/media/libcubeb/src/cubeb_opensl.c b/media/libcubeb/src/cubeb_opensl.c
index af59b607c16..4cf9a530d60 100644
--- a/media/libcubeb/src/cubeb_opensl.c
+++ b/media/libcubeb/src/cubeb_opensl.c
@@ -559,7 +559,7 @@ opensl_stream_get_position(cubeb_stream * stm, uint64_t * position)
   uint64_t samplerate;
   SLresult res;
   int rv;
-  int32_t mixer_latency;
+  uint32_t mixer_latency;
 
   res = (*stm->play)->GetPosition(stm->play, &msec);
   if (res != SL_RESULT_SUCCESS)