diff --git a/include/SDL3/SDL_stdinc.h b/include/SDL3/SDL_stdinc.h
index 1c4d8da63a..d2bcb157fd 100644
--- a/include/SDL3/SDL_stdinc.h
+++ b/include/SDL3/SDL_stdinc.h
@@ -1796,6 +1796,8 @@ extern SDL_DECLSPEC void SDLCALL SDL_DestroyEnvironment(SDL_Environment *env);
 /**
  * Get the value of a variable in the environment.
  *
+ * The name of the variable is case sensitive on all platforms.
+ *
  * This function uses SDL's cached copy of the environment and is thread-safe.
  *
  * \param name the name of the variable to get.