diff --git a/process_pipeline.c b/process_pipeline.c
index 4ba2f99..4fca4b3 100644
--- a/process_pipeline.c
+++ b/process_pipeline.c
@@ -424,6 +424,7 @@ mp_process_pipeline_process_image(MPImage image)
 	// If we haven't processed the previous frame yet, drop this one
 	if (frames_received != frames_processed && !is_capturing) {
 		printf("Dropped frame at capture\n");
+		free(image.data);
 		return;
 	}
 
diff --git a/zbar_pipeline.c b/zbar_pipeline.c
index 9fae808..e4c9257 100644
--- a/zbar_pipeline.c
+++ b/zbar_pipeline.c
@@ -160,6 +160,7 @@ mp_zbar_pipeline_process_image(cairo_surface_t *surface)
 {
 	// If we haven't processed the previous frame yet, drop this one
 	if (frames_received != frames_processed) {
+		cairo_surface_destroy(surface);
 		return;
 	}