diff --git a/racket/src/racket/include/schthread.h b/racket/src/racket/include/schthread.h
index 8db6702332..e60de86483 100644
--- a/racket/src/racket/include/schthread.h
+++ b/racket/src/racket/include/schthread.h
@@ -290,7 +290,6 @@ typedef struct Thread_Local_Variables {
   struct Scheme_Logger *scheme_future_logger_;
   struct Scheme_Logger *scheme_place_logger_;
   int intdef_counter_;
-  int env_uid_counter_;
   int scheme_overflow_count_;
   struct Scheme_Object *original_pwd_;
   void *file_path_wc_buffer_;
@@ -683,7 +682,6 @@ XFORM_GC_VARIABLE_STACK_THROUGH_THREAD_LOCAL;
 #define scheme_future_logger XOA (scheme_get_thread_local_variables()->scheme_future_logger_)
 #define scheme_place_logger XOA (scheme_get_thread_local_variables()->scheme_place_logger_)
 #define intdef_counter XOA (scheme_get_thread_local_variables()->intdef_counter_)
-#define env_uid_counter XOA (scheme_get_thread_local_variables()->env_uid_counter_)
 #define scheme_overflow_count XOA (scheme_get_thread_local_variables()->scheme_overflow_count_)
 #define original_pwd XOA (scheme_get_thread_local_variables()->original_pwd_)
 #define file_path_wc_buffer XOA (scheme_get_thread_local_variables()->file_path_wc_buffer_)
diff --git a/racket/src/racket/src/compenv.c b/racket/src/racket/src/compenv.c
index 93e52d4da5..5f7de25852 100644
--- a/racket/src/racket/src/compenv.c
+++ b/racket/src/racket/src/compenv.c
@@ -38,7 +38,6 @@ READ_ONLY static Scheme_Object *toplevels[MAX_CONST_TOPLEVEL_DEPTH][MAX_CONST_TO
 /* If locked, these are probably sharable: */
 THREAD_LOCAL_DECL(static Scheme_Hash_Table *toplevels_ht);
 THREAD_LOCAL_DECL(static Scheme_Hash_Table *locals_ht[2]);
-THREAD_LOCAL_DECL(static int env_uid_counter);
 
 #define ARBITRARY_USE     0x1
 #define CONSTRAINED_USE   0x2