diff --git a/OpenCL/m18100_a0-pure.cl b/OpenCL/m18100_a0-pure.cl
index 9c589b1b3..54aa51e1f 100644
--- a/OpenCL/m18100_a0-pure.cl
+++ b/OpenCL/m18100_a0-pure.cl
@@ -88,11 +88,6 @@ __kernel void m18100_mxx (__global pw_t *pws, __constant const kernel_rule_t *ru
     // we want to generate only 6 digits of code
     otp_code %= 1000000;
 
-    const u32 r0 = ctx.opad.h[DGST_R0];
-    const u32 r1 = ctx.opad.h[DGST_R1];
-    const u32 r2 = ctx.opad.h[DGST_R2];
-    const u32 r3 = ctx.opad.h[DGST_R3];
-
     COMPARE_M_SCALAR (otp_code, 0, 0, 0);
   }
 }
@@ -182,11 +177,6 @@ __kernel void m18100_sxx (__global pw_t *pws, __constant const kernel_rule_t *ru
     // we want to generate only 6 digits of code
     otp_code %= 1000000;
 
-    const u32 r0 = ctx.opad.h[DGST_R0];
-    const u32 r1 = ctx.opad.h[DGST_R1];
-    const u32 r2 = ctx.opad.h[DGST_R2];
-    const u32 r3 = ctx.opad.h[DGST_R3];
-
     COMPARE_S_SCALAR (otp_code, 0, 0, 0);
   }
 }
diff --git a/OpenCL/m18100_a1-pure.cl b/OpenCL/m18100_a1-pure.cl
index 940a7c5da..67b9c719f 100644
--- a/OpenCL/m18100_a1-pure.cl
+++ b/OpenCL/m18100_a1-pure.cl
@@ -111,11 +111,6 @@ __kernel void m18100_mxx (__global pw_t *pws, __global const kernel_rule_t *rule
     // we want to generate only 6 digits of code
     otp_code %= 1000000;
 
-    const u32 r0 = ctx.opad.h[DGST_R0];
-    const u32 r1 = ctx.opad.h[DGST_R1];
-    const u32 r2 = ctx.opad.h[DGST_R2];
-    const u32 r3 = ctx.opad.h[DGST_R3];
-
     COMPARE_M_SCALAR (otp_code, 0, 0, 0);
   }
 }
@@ -230,11 +225,6 @@ __kernel void m18100_sxx (__global pw_t *pws, __global const kernel_rule_t *rule
     // we want to generate only 6 digits of code
     otp_code %= 1000000;
 
-    const u32 r0 = ctx.opad.h[DGST_R0];
-    const u32 r1 = ctx.opad.h[DGST_R1];
-    const u32 r2 = ctx.opad.h[DGST_R2];
-    const u32 r3 = ctx.opad.h[DGST_R3];
-
     COMPARE_S_SCALAR (otp_code, 0, 0, 0);
   }
 }