diff --git a/client/reveng/reveng.c b/client/reveng/reveng.c
index 3c6da126a..dd50987c3 100644
--- a/client/reveng/reveng.c
+++ b/client/reveng/reveng.c
@@ -257,6 +257,7 @@ engini(int *resc, model_t **result, const poly_t divisor, int flags, int args, c
 		palloc(&apoly, dlen);
 		calini(resc, result, divisor, flags, apoly, args, argpolys);
 		pfree(&apoly);
+		free(mat);
 		return;
 	}