diff --git a/include/dma.h b/include/dma.h
index d0e4fc79..3f2915cb 100644
--- a/include/dma.h
+++ b/include/dma.h
@@ -115,6 +115,4 @@ bool SecondDMAControllerAvailable(void);
 
 void DMA_SetWrapping(Bitu wrap);
 
-static Bit32u dma_wrapping = 0xffff;
-
 #endif
diff --git a/src/hardware/dma.cpp b/src/hardware/dma.cpp
index 6d1bb9b0..830aa58d 100644
--- a/src/hardware/dma.cpp
+++ b/src/hardware/dma.cpp
@@ -31,6 +31,8 @@ DmaController *DmaControllers[2];
 #define EMM_PAGEFRAME4K	((0xE000*16)/4096)
 Bit32u ems_board_mapping[LINK_START];
 
+static Bit32u dma_wrapping = 0xffff;
+
 static void UpdateEMSMapping(void) {
 	/* if EMS is not present, this will result in a 1:1 mapping */
 	Bitu i;