diff --git a/sysdeps/mach/hurd/i386/____longjmp_chk.S b/sysdeps/mach/hurd/i386/____longjmp_chk.S
index 5131386c60..a746a4f2ba 100644
--- a/sysdeps/mach/hurd/i386/____longjmp_chk.S
+++ b/sysdeps/mach/hurd/i386/____longjmp_chk.S
@@ -67,7 +67,7 @@ ENTRY (____longjmp_chk)
 
 	movl	%gs:SIGSTATE_OFFSET, %edi
 	testl	%edi, %edi
-	jnz	.Lok		/* sigstate not initialized yet */
+	jz	.Lok		/* sigstate not initialized yet */
 
 	testl	$SS_ONSTACK, (HURD_SIGSTATE__SIGALTSTACK__OFFSET + SIGALTSTACK__SS_FLAGS__OFFSET)(%edi)
 	jnz	.Lonstack
diff --git a/sysdeps/mach/hurd/i386/__longjmp.S b/sysdeps/mach/hurd/i386/__longjmp.S
index 73bbff9826..af788ede0f 100644
--- a/sysdeps/mach/hurd/i386/__longjmp.S
+++ b/sysdeps/mach/hurd/i386/__longjmp.S
@@ -45,7 +45,7 @@ ENTRY (__longjmp)
 
 	movl	%gs:SIGSTATE_OFFSET, %edi
 	testl	%edi, %edi
-	jnz	.Lok		/* sigstate not initialized yet */
+	jz	.Lok		/* sigstate not initialized yet */
 
 	testl	$SS_ONSTACK, (HURD_SIGSTATE__SIGALTSTACK__OFFSET + SIGALTSTACK__SS_FLAGS__OFFSET)(%edi)
 	jz	.Lok