diff --git a/second/glue.S b/second/glue.S
index 4300f05..1cd4579 100644
--- a/second/glue.S
+++ b/second/glue.S
@@ -227,3 +227,12 @@ PBControlSync:
 	unlk	%fp
 	rts
 
+	/* void SysError(short errorCode) */
+
+	.global SysError
+SysError:
+	link	%fp, #0
+	move.l	8(%fp), %d0
+	dc.w	0xA9C9		/* SysError */
+	unlk	%fp
+	rts
diff --git a/second/glue.h b/second/glue.h
index 0ae27df..689697c 100644
--- a/second/glue.h
+++ b/second/glue.h
@@ -189,3 +189,4 @@ extern OSErr PBWriteSync(ParamBlockRec_t* paramBlock);
 extern OSErr PBOpenSync(ParmBlkPtr paramBlock);
 extern OSErr PBCloseSync(ParmBlkPtr paramBlock);
 extern OSErr PBControlSync(ParmBlkPtr paramBlock);
+extern void SysError(short errorCode);