diff --git a/test/rbus/consumer/filter.c b/test/rbus/consumer/filter.c
index 3ec87e60..d35d0a08 100644
--- a/test/rbus/consumer/filter.c
+++ b/test/rbus/consumer/filter.c
@@ -64,6 +64,9 @@ static void testSerialize(rbusFilter_t f1)
     if(!file)
     {
         TEST(file != NULL);
+        /* Free allocated buffers before returning to prevent resource leak */
+        rbusBuffer_Destroy(buffOut);
+        rbusBuffer_Destroy(buffIn);
         return;
     }
     fseek(file, 0, SEEK_END);