1 files changed, 3 insertions, 3 deletions
diff --git a/src/math/numbertheory/point_gfp.cpp b/src/math/numbertheory/point_gfp.cpp
index 5da1959bc..8cb40270c 100644
--- a/src/math/numbertheory/point_gfp.cpp
+++ b/src/math/numbertheory/point_gfp.cpp
@@ -324,12 +324,12 @@ PointGFp operator*(const BigInt& scalar, const PointGFp& point)
 
    while(bits_left >= window_size)
       {
-      size_t nibble = scalar.get_substring(bits_left - window_size,
-                                           window_size);
-
       for(size_t i = 0; i != window_size; ++i)
          H.mult2(ws);
 
+      const u32bit nibble = scalar.get_substring(bits_left - window_size,
+                                                 window_size);
+
       if(nibble)
          H.add(Ps[nibble-1], ws);