#if defined TIMER1A_ENABLED && defined TIMER1_COMPA_vect
-DEFINE_REGISTER_OC_INTR_AT_TICS(1, TIMER1_COMPA_vect)
+DEFINE_REGISTER_OC_INTR_AT_TICS(1A, TIMER1_COMPA_vect)
#endif
#if defined TIMER1B_ENABLED && defined TIMER1_COMPB_vect
-DEFINE_REGISTER_OC_INTR_AT_TICS(1, TIMER1_COMPB_vect)
+DEFINE_REGISTER_OC_INTR_AT_TICS(1B, TIMER1_COMPB_vect)
#endif
#if defined TIMER1C_ENABLED && defined TIMER1_COMPC_vect
-DEFINE_REGISTER_OC_INTR_AT_TICS(1, TIMER1_COMPC_vect)
+DEFINE_REGISTER_OC_INTR_AT_TICS(1C, TIMER1_COMPC_vect)
#endif