diff --git a/src/bin/jp2/opj_compress.c b/src/bin/jp2/opj_compress.c
index da89e512..33efe757 100644
--- a/src/bin/jp2/opj_compress.c
+++ b/src/bin/jp2/opj_compress.c
@@ -1392,28 +1392,6 @@ static int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *param
 
 /* -------------------------------------------------------------------------- */
 
-/**
-sample error callback expecting a FILE* client object
-*/
-static void error_file_callback(const char *msg, void *client_data) {
-    FILE *stream = (FILE*)client_data;
-    fprintf(stream, "[ERROR] %s", msg);
-}
-/**
-sample warning callback expecting a FILE* client object
-*/
-static void warning_file_callback(const char *msg, void *client_data) {
-    FILE *stream = (FILE*)client_data;
-    fprintf(stream, "[WARNING] %s", msg);
-}
-/**
-sample debug callback expecting a FILE* client object
-*/
-static void info_file_callback(const char *msg, void *client_data) {
-    FILE *stream = (FILE*)client_data;
-    fprintf(stream, "[INFO] %s", msg);
-}
-
 /**
 sample error debug callback expecting no client object
 */
diff --git a/tests/test_tile_encoder.c b/tests/test_tile_encoder.c
index dbc3f037..62becce7 100644
--- a/tests/test_tile_encoder.c
+++ b/tests/test_tile_encoder.c
@@ -35,20 +35,6 @@
 
 /* -------------------------------------------------------------------------- */
 
-/**
-sample error callback expecting a FILE* client object
-*/
-static void error_callback_file(const char *msg, void *client_data) {
-	FILE *stream = (FILE*)client_data;
-	fprintf(stream, "[ERROR] %s", msg);
-}
-/**
-sample warning callback expecting a FILE* client object
-*/
-static void warning_callback_file(const char *msg, void *client_data) {
-	FILE *stream = (FILE*)client_data;
-	fprintf(stream, "[WARNING] %s", msg);
-}
 /**
 sample error debug callback expecting no client object
 */