diff --git a/OpenCL/m21310_a1-pure.cl b/OpenCL/m21310_a1-pure.cl
index 67a0eeb2d..006246416 100644
--- a/OpenCL/m21310_a1-pure.cl
+++ b/OpenCL/m21310_a1-pure.cl
@@ -149,7 +149,7 @@ KERNEL_FQ void m21310_mxx (KERN_ATTR_ESALT (md5_double_salt_t))
   }
 }
 
-KERNEL_FQ void m21310_sxx (KERN_ATTR_ESALT (md5_double_salt))
+KERNEL_FQ void m21310_sxx (KERN_ATTR_ESALT (md5_double_salt_t))
 {
   /**
    * modifier
diff --git a/OpenCL/m21310_a3-pure.cl b/OpenCL/m21310_a3-pure.cl
index 985d67cae..ce53dbc26 100644
--- a/OpenCL/m21310_a3-pure.cl
+++ b/OpenCL/m21310_a3-pure.cl
@@ -168,7 +168,7 @@ KERNEL_FQ void m21310_mxx (KERN_ATTR_VECTOR_ESALT (md5_double_salt_t))
   }
 }
 
-KERNEL_FQ void m21310_sxx (KERN_ATTR_VECTOR_ESALT (md5_double_salt))
+KERNEL_FQ void m21310_sxx (KERN_ATTR_VECTOR_ESALT (md5_double_salt_t))
 {
   /**
    * modifier