diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 304592e..c393d45 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -30,6 +30,7 @@ add_test(NAME simple_implicit3   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURC
 add_test(NAME simple_implicit4   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/implicit4.art)
 add_test(NAME simple_implicit5   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/implicit5.art)
 add_test(NAME simple_implicit6   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/implicit6.art)
+add_test(NAME simple_implicit7   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/implicit7.art)
 add_test(NAME simple_while       COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/while.art)
 add_test(NAME simple_while_let   COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/while_let.art)
 add_test(NAME simple_for         COMMAND artic --print-ast ${CMAKE_CURRENT_SOURCE_DIR}/simple/for.art)
diff --git a/test/simple/implicit7.art b/test/simple/implicit7.art
new file mode 100644
index 0000000..1199a73
--- /dev/null
+++ b/test/simple/implicit7.art
@@ -0,0 +1,12 @@
+struct Zero[T] { value: T }
+struct Cmp[T] { cmp: fn(T, T) -> bool }
+
+implicit = Zero[i32] { value = 0 };
+implicit = Cmp[i32] { cmp = |x, y| x == y };
+
+fn is_zero[T](value: T, implicit zero: Zero[T], implicit cmp: Cmp[T]) -> bool {
+    cmp.cmp(value, zero.value)
+}
+
+#[export]
+fn foo(i: i32) = if (is_zero[i32](i)) { 1 } else { 0 };
\ No newline at end of file