diff --git a/conversions/to_jpg.cpp b/conversions/to_jpg.cpp
index f8987a8..c433485 100644
--- a/conversions/to_jpg.cpp
+++ b/conversions/to_jpg.cpp
@@ -232,6 +232,7 @@ bool fmt2jpg(uint8_t *src, size_t src_len, uint16_t width, uint16_t height, pixf
 
     *out = jpg_buf;
     *out_len = dst_stream.get_size();
+    free(jpg_buf);
     return true;
 }