diff --git a/src/libexpr-c/nix_api_value.cc b/src/libexpr-c/nix_api_value.cc
index be8ff4926..7fd8233ad 100644
--- a/src/libexpr-c/nix_api_value.cc
+++ b/src/libexpr-c/nix_api_value.cc
@@ -58,7 +58,7 @@ static nix::Value & check_value_out(nix_value * value)
     return v;
 }
 
-static inline nix_value * new_nix_value(nix::Value * v, nix::EvalMemory & mem)
+static nix_value * new_nix_value(nix::Value * v, nix::EvalMemory & mem)
 {
     nix_value * ret = new (mem.allocBytes(sizeof(nix_value))) nix_value{
         .value = v,
diff --git a/src/libexpr-tests/nix_api_value_internal.cc b/src/libexpr-tests/nix_api_value_internal.cc
index 34db6ac81..085b0798f 100644
--- a/src/libexpr-tests/nix_api_value_internal.cc
+++ b/src/libexpr-tests/nix_api_value_internal.cc
@@ -14,12 +14,4 @@
 
 namespace nixC {
 
-TEST_F(nix_api_expr_test, as_nix_value_ptr)
-{
-    // nix_alloc_value casts nix::Value to nix_value
-    // It should be obvious from the decl that that works, but if it doesn't,
-    // the whole implementation would be utterly broken.
-    ASSERT_EQ(sizeof(nix::Value), sizeof(nix_value));
-}
-
 } // namespace nixC