diff --git a/symengine/assumptions.cpp b/symengine/assumptions.cpp
index 4287e707ba..df44b24ace 100644
--- a/symengine/assumptions.cpp
+++ b/symengine/assumptions.cpp
@@ -14,7 +14,9 @@ Assumptions::Assumptions(const set_basic &statements)
             const auto expr = contains.get_expr();
             const auto set = contains.get_set();
             if (is_a<Symbol>(*expr)) {
-                if (is_a<Reals>(*set)) {
+                if (is_a<Complexes>(*set)) {
+                    complex_symbols_.insert(expr);
+                } else if (is_a<Reals>(*set)) {
                     complex_symbols_.insert(expr);
                     real_symbols_.insert(expr);
                 } else if (is_a<Rationals>(*set)) {
diff --git a/symengine/tests/basic/test_assumptions.cpp b/symengine/tests/basic/test_assumptions.cpp
index 27b0f8a6db..8f218e84a2 100644
--- a/symengine/tests/basic/test_assumptions.cpp
+++ b/symengine/tests/basic/test_assumptions.cpp
@@ -4,6 +4,7 @@
 
 using SymEngine::Assumptions;
 using SymEngine::Basic;
+using SymEngine::complexes;
 using SymEngine::integer;
 using SymEngine::integers;
 using SymEngine::Number;
@@ -39,6 +40,10 @@ TEST_CASE("Test assumptions", "[assumptions]")
     RCP<const Basic> rel14 = Ne(x, integer(0));
     RCP<const Basic> rel;
 
+    Assumptions a = Assumptions({complexes()->contains(x)});
+    REQUIRE(is_true(a.is_complex(x)));
+    REQUIRE(is_indeterminate(a.is_real(x)));
+
     auto a1 = Assumptions({s1->contains(x)});
     REQUIRE(is_true(a1.is_real(x)));
     REQUIRE(is_indeterminate(a1.is_integer(x)));
@@ -204,7 +209,7 @@ TEST_CASE("Test assumptions", "[assumptions]")
     REQUIRE(is_false(a18.is_zero(x)));
 
     rel = Eq(x, integer(1));
-    auto a = Assumptions({rel});
+    a = Assumptions({rel});
     REQUIRE(is_true(a.is_nonzero(x)));
     REQUIRE(is_false(a.is_zero(x)));