diff --git a/test/decompiler/FormRegressionTest.cpp b/test/decompiler/FormRegressionTest.cpp
index 4b5c17d424..447154adfd 100644
--- a/test/decompiler/FormRegressionTest.cpp
+++ b/test/decompiler/FormRegressionTest.cpp
@@ -21,13 +21,13 @@ using namespace decompiler;
 
 void FormRegressionTestJak1::SetUpTestCase() {
   parser = std::make_unique<InstructionParser>();
-  dts = std::make_unique<DecompilerTypeSystem>(game_version);
+  dts = std::make_unique<DecompilerTypeSystem>(GameVersion::Jak1);
   dts->parse_type_defs({"decompiler", "config", "all-types.gc"});
 }
 
 void FormRegressionTestJak2::SetUpTestCase() {
   parser = std::make_unique<InstructionParser>();
-  dts = std::make_unique<DecompilerTypeSystem>(game_version);
+  dts = std::make_unique<DecompilerTypeSystem>(GameVersion::Jak2);
   dts->parse_type_defs({"decompiler", "config", "jak2", "all-types.gc"});
 }
 
diff --git a/test/decompiler/FormRegressionTest.h b/test/decompiler/FormRegressionTest.h
index 652652dab1..93ff352400 100644
--- a/test/decompiler/FormRegressionTest.h
+++ b/test/decompiler/FormRegressionTest.h
@@ -100,14 +100,10 @@ class FormRegressionTest : public ::testing::TestWithParam<GameVersion> {
 
 class FormRegressionTestJak1 : public FormRegressionTest {
  protected:
-  static const GameVersion game_version = GameVersion::Jak1;
-
   static void SetUpTestCase();
 };
 
 class FormRegressionTestJak2 : public FormRegressionTest {
  protected:
-  static const GameVersion game_version = GameVersion::Jak2;
-
   static void SetUpTestCase();
 };