diff --git a/.changelog/1277.trivial.md b/.changelog/1277.trivial.md
new file mode 100644
index 000000000..596506011
--- /dev/null
+++ b/.changelog/1277.trivial.md
@@ -0,0 +1 @@
+Test and fix process.env types
diff --git a/src/global.d.ts b/src/types/global.d.ts
similarity index 98%
rename from src/global.d.ts
rename to src/types/global.d.ts
index ac5ddfab9..cac3fc202 100644
--- a/src/global.d.ts
+++ b/src/types/global.d.ts
@@ -29,3 +29,5 @@ declare global {
     }
   }
 }
+
+export {}
diff --git a/src/types/global.typetest.tsx b/src/types/global.typetest.tsx
new file mode 100644
index 000000000..867c80381
--- /dev/null
+++ b/src/types/global.typetest.tsx
@@ -0,0 +1,10 @@
+export function ExpectEnvToHaveStrictType() {
+  process.env.REACT_APP_SHOW_BUILD_BANNERS = undefined
+  process.env.REACT_APP_SHOW_BUILD_BANNERS = 'true'
+  process.env.REACT_APP_API = 'https://'
+
+  // @ts-expect-error Expect typescript to detect unsupported value
+  process.env.REACT_APP_SHOW_BUILD_BANNERS = 'unsupported_value'
+  // @ts-expect-error Expect typescript to detect required field
+  process.env.REACT_APP_API = undefined
+}