diff --git a/tools/wrt350nv2-builder/src/wrt350nv2-builder.c b/tools/wrt350nv2-builder/src/wrt350nv2-builder.c
index 3ebb40ed51..36f05878c4 100644
--- a/tools/wrt350nv2-builder/src/wrt350nv2-builder.c
+++ b/tools/wrt350nv2-builder/src/wrt350nv2-builder.c
@@ -556,6 +556,7 @@ int create_bin_file(char *bin_filename) {
 		}
 	}
 
+	free(buffer);
 	return exitcode;
 }