diff --git a/tests/test_extents.cpp b/tests/test_extents.cpp
index 0fd7667d..f7596c80 100644
--- a/tests/test_extents.cpp
+++ b/tests/test_extents.cpp
@@ -119,7 +119,8 @@ TYPED_TEST(TestExtents, copy_ctor) {
 }
 
 TYPED_TEST(TestExtents, copy_assign) {
-  typename TestFixture::extents_type e = this->exts;
+  typename TestFixture::extents_type e;
+  e = this->exts;
   EXPECT_EQ(e, this->exts);
 }