diff --git a/kernel/int2f.asm b/kernel/int2f.asm
index 8ab31fc..0f07d24 100644
--- a/kernel/int2f.asm
+++ b/kernel/int2f.asm
@@ -180,7 +180,7 @@ Int2f?iret:
 DriverSysCal:
                 extern  _Dyn
                 cmp     al, 3
-                jne     Int2f?iret
+                jne     IntDosCal ; pass other calls through
                 mov     ds, [cs:_DGROUP_]
                 mov     di, _Dyn+2
                 jmp     short Int2f?iret
diff --git a/kernel/inthndlr.c b/kernel/inthndlr.c
index 2cfdb5a..b4be07c 100644
--- a/kernel/inthndlr.c
+++ b/kernel/inthndlr.c
@@ -2220,6 +2220,7 @@ VOID ASMCFUNC int2F_12_handler(struct int2f12regs FAR *pr)
 	  /* TODO */
       break;
 
+    /* Note: see in2f.asm where this is handled */
     case 0x03:                 /* get drive data table */
       r.DS = FP_SEG(&nul_dev);
 	  r.DI = FP_OFF(getddt(0));