diff --git a/libmacos/macos/errors.h b/libmacos/macos/errors.h
index e5073dd..190c2ea 100644
--- a/libmacos/macos/errors.h
+++ b/libmacos/macos/errors.h
@@ -37,7 +37,7 @@ enum {
 #ifdef __mc68000__
 static inline void SysError(short errorCode)
 {
-	asm("move.l %0, %%d0\n"
+	asm("move.w %0, %%d0\n"
 		Trap(_SysError)
 	    :: "g" (errorCode) : "%%d0", UNPRESERVED_REGS);
 }
diff --git a/libmacos/macos/init.h b/libmacos/macos/init.h
index cddfab3..2813541 100644
--- a/libmacos/macos/init.h
+++ b/libmacos/macos/init.h
@@ -12,14 +12,14 @@
 #ifdef __mc68000__
 statis inline void InitEvents(short CntEvts)
 {
-	asm("move.l %0, %%d0\n"
+	asm("move.w %0, %%d0\n"
 		Trap(_InitEvents)
 	    :: "g" (CntEvts) : "%%d0", UNPRESERVED_REGS);
 }
 
 static inline void InitFS(short CntFCBs)
 {
-	asm("move.l %0, %%d0\n"
+	asm("move.w %0, %%d0\n"
 		Trap(_InitFs)
 	    :: "g" (CntFCBs) : "%%d0", UNPRESERVED_REGS);
 }