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-rw-r--r--src/mame/drivers/esq1.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/esq1.cpp b/src/mame/drivers/esq1.cpp
index c60c5666a5f..4b843e36ea7 100644
--- a/src/mame/drivers/esq1.cpp
+++ b/src/mame/drivers/esq1.cpp
@@ -699,6 +699,6 @@ ROM_START( esqm )
ROM_END
-CONS( 1986, esq1, 0 , 0, esq1, esq1, esq1_state, 0, "Ensoniq", "ESQ-1 Digital Wave Synthesizer", MACHINE_NOT_WORKING )
-CONS( 1986, esqm, esq1, 0, esq1, esq1, esq1_state, 0, "Ensoniq", "ESQ-M Digital Wave Synthesizer Module", MACHINE_NOT_WORKING )
-CONS( 1988, sq80, 0, 0, sq80, esq1, esq1_state, 0, "Ensoniq", "SQ-80 Cross Wave Synthesizer", MACHINE_NOT_WORKING )
+CONS( 1986, esq1, 0 , 0, esq1, esq1, esq1_state, empty_init, "Ensoniq", "ESQ-1 Digital Wave Synthesizer", MACHINE_NOT_WORKING )
+CONS( 1986, esqm, esq1, 0, esq1, esq1, esq1_state, empty_init, "Ensoniq", "ESQ-M Digital Wave Synthesizer Module", MACHINE_NOT_WORKING )
+CONS( 1988, sq80, 0, 0, sq80, esq1, esq1_state, empty_init, "Ensoniq", "SQ-80 Cross Wave Synthesizer", MACHINE_NOT_WORKING )