diff --git a/src/mame/machine/n64.cpp b/src/mame/machine/n64.cpp
index 2a0360b5a2a..8ab56187b43 100644
--- a/src/mame/machine/n64.cpp
+++ b/src/mame/machine/n64.cpp
@@ -587,7 +587,7 @@ void n64_periphs::sp_dma(int direction)
 			sp_mem_addr += length;
 			sp_dram_addr += length;
 
-			sp_mem_addr += sp_dma_skip;
+			sp_dram_addr += sp_dma_skip;
 		}
 	}
 	else                    // I/DMEM -> RDRAM