diff --git a/tests/sat/test-007.smt2 b/tests/sat/test-007.smt2
index 62c9e167..ba7c3048 100644
--- a/tests/sat/test-007.smt2
+++ b/tests/sat/test-007.smt2
@@ -1,2 +1,6 @@
+(declare-sort $i 0)
+(declare-fun a () $i)
+(declare-fun b () $i)
+(declare-fun c () $i)
 (assert (and (= a b) (= b c)))
 (check-sat)
diff --git a/tests/sat/test-010.smt2 b/tests/sat/test-010.smt2
index dbec8ea3..5a2149b3 100644
--- a/tests/sat/test-010.smt2
+++ b/tests/sat/test-010.smt2
@@ -1,2 +1,7 @@
+(declare-sort $i 0)
+(declare-fun a () $i)
+(declare-fun b () $i)
+(declare-fun c () $i)
+(declare-fun d () $i)
 (assert (and (= a b) (= b c) (or (not (= a c)) (= a d))))
 (check-sat)