diff --git a/lea_simd.cpp b/lea_simd.cpp
index 77a29254..060b6468 100644
--- a/lea_simd.cpp
+++ b/lea_simd.cpp
@@ -1036,17 +1036,15 @@ size_t LEA_Dec_AdvancedProcessBlocks_SSSE3(const word32* subKeys, size_t rounds,
 size_t LEA_Enc_AdvancedProcessBlocks_NEON(const word32* subKeys, size_t rounds,
     const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
 {
-    uint32x4_t unused;  // Avoid template argument deduction/substitution failures
     return AdvancedProcessBlocks128_4x1_NEON(LEA_Enc_Block, LEA_Enc_4_Blocks,
-        unused, subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
+        subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
 }
 
 size_t LEA_Dec_AdvancedProcessBlocks_NEON(const word32* subKeys, size_t rounds,
     const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
 {
-    uint32x4_t unused;  // Avoid template argument deduction/substitution failures
     return AdvancedProcessBlocks128_4x1_NEON(LEA_Dec_Block, LEA_Dec_4_Blocks,
-        unused, subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
+        subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
 }
 #endif // CRYPTOPP_ARM_NEON_AVAILABLE