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-rw-r--r--src/lib/math/ec_gfp/curve_nistp.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/math/ec_gfp/curve_nistp.cpp b/src/lib/math/ec_gfp/curve_nistp.cpp
index c153340e9..176409dbf 100644
--- a/src/lib/math/ec_gfp/curve_nistp.cpp
+++ b/src/lib/math/ec_gfp/curve_nistp.cpp
@@ -94,7 +94,7 @@ inline u32bit get_u32bit(const BigInt& x, size_t i)
#if (BOTAN_MP_WORD_BITS == 32)
return x.word_at(i);
#elif (BOTAN_MP_WORD_BITS == 64)
- return (x.word_at(i/2) >> ((i % 2)*32));
+ return static_cast<u32bit>(x.word_at(i/2) >> ((i % 2)*32));
#else
#error "Not implemented"
#endif