diff --git a/src/threading.c b/src/threading.c
index 65ed0171ff317..1549070e55d40 100644
--- a/src/threading.c
+++ b/src/threading.c
@@ -287,8 +287,8 @@ void jl_pgcstack_getkey(jl_get_pgcstack_func **f, jl_pgcstack_key_t *k)
 #endif
 
 jl_ptls_t *jl_all_tls_states JL_GLOBALLY_ROOTED;
-volatile uint8_t jl_measure_compile_time = 0;
-volatile uint64_t jl_cumulative_compile_time = 0;
+uint8_t jl_measure_compile_time = 0;
+uint64_t jl_cumulative_compile_time = 0;
 
 // return calling thread's ID
 // Also update the suspended_threads list in signals-mach when changing the