diff --git a/adv-simd.h b/adv-simd.h
index 7a560764..36e5015d 100644
--- a/adv-simd.h
+++ b/adv-simd.h
@@ -83,12 +83,10 @@ inline size_t AdvancedProcessBlocks64_6x2_NEON(F2 func2, F6 func6,
 
 #if defined(CRYPTOPP_LITTLE_ENDIAN)
     const word32 s_zero32x4[]   = {0, 0, 0, 0};
-    const word32 s_one32x4[]    = {0, 0, 0, 1<<24};
     const word32 s_one32x4_1b[] = {0, 0, 0, 1<<24};
     const word32 s_one32x4_2b[] = {0, 2<<24, 0, 2<<24};
 #else
     const word32 s_zero32x4[]   = {0, 0, 0, 0};
-    const word32 s_one32x4[]    = {0, 0, 0, 1};
     const word32 s_one32x4_1b[] = {0, 0, 0, 1};
     const word32 s_one32x4_2b[] = {0, 2, 0, 2};
 #endif
@@ -328,13 +326,9 @@ inline size_t AdvancedProcessBlocks128_NEON1x6(F1 func1, F6 func6,
 #if defined(CRYPTOPP_LITTLE_ENDIAN)
     const word32 s_zero32x4[]   = {0, 0, 0, 0};
     const word32 s_one32x4[]    = {0, 0, 0, 1<<24};
-    const word32 s_one32x4_1b[] = {0, 0, 0, 1<<24};
-    const word32 s_one32x4_2b[] = {0, 2<<24, 0, 2<<24};
 #else
     const word32 s_zero32x4[]   = {0, 0, 0, 0};
     const word32 s_one32x4[]    = {0, 0, 0, 1};
-    const word32 s_one32x4_1b[] = {0, 0, 0, 1};
-    const word32 s_one32x4_2b[] = {0, 2, 0, 2};
 #endif
 
     const ptrdiff_t blockSize = 16;
@@ -481,15 +475,9 @@ inline size_t AdvancedProcessBlocks128_6x2_NEON(F2 func2, F6 func6,
     CRYPTOPP_ASSERT(length >= 16);
 
 #if defined(CRYPTOPP_LITTLE_ENDIAN)
-    const word32 s_zero32x4[]   = {0, 0, 0, 0};
     const word32 s_one32x4[]    = {0, 0, 0, 1<<24};
-    const word32 s_one32x4_1b[] = {0, 0, 0, 1<<24};
-    const word32 s_one32x4_2b[] = {0, 2<<24, 0, 2<<24};
 #else
-    const word32 s_zero32x4[]   = {0, 0, 0, 0};
     const word32 s_one32x4[]    = {0, 0, 0, 1};
-    const word32 s_one32x4_1b[] = {0, 0, 0, 1};
-    const word32 s_one32x4_2b[] = {0, 2, 0, 2};
 #endif
 
     const ptrdiff_t blockSize = 16;