diff --git a/src/mame/machine/interpro_ioga.cpp b/src/mame/machine/interpro_ioga.cpp
index e3e4c921324..8c5d03131f2 100644
--- a/src/mame/machine/interpro_ioga.cpp
+++ b/src/mame/machine/interpro_ioga.cpp
@@ -40,7 +40,7 @@
 #define LOG_INTERRUPT(...)
 #define LOG_TIMER(timer, ...)
 #define LOG_HWINT(interrupt, ...)
-#define LOG_DMA(channel, ...)
+#define LOG_DMA(channel, ...) do {} while(0)
 #define LOG_DMA_SERIAL(channel, ...)
 #define LOG_ETH(...)
 #endif