diff --git a/src/enc/histogram_enc.c b/src/enc/histogram_enc.c
index a5814742..8418def2 100644
--- a/src/enc/histogram_enc.c
+++ b/src/enc/histogram_enc.c
@@ -256,7 +256,7 @@ static WEBP_INLINE float BitsEntropyRefine(const VP8LBitEntropy* entropy) {
   }
 
   {
-    float min_limit = 2 * entropy->sum - entropy->max_val;
+    float min_limit = 2.f * entropy->sum - entropy->max_val;
     min_limit = mix * min_limit + (1.f - mix) * entropy->entropy;
     return (entropy->entropy < min_limit) ? min_limit : entropy->entropy;
   }
diff --git a/src/enc/predictor_enc.c b/src/enc/predictor_enc.c
index d950b9a0..b3d44b59 100644
--- a/src/enc/predictor_enc.c
+++ b/src/enc/predictor_enc.c
@@ -35,7 +35,7 @@ static float PredictionCostSpatial(const int counts[256], int weight_0,
                                    float exp_val) {
   const int significant_symbols = 256 >> 4;
   const float exp_decay_factor = 0.6f;
-  float bits = weight_0 * counts[0];
+  float bits = (float)weight_0 * counts[0];
   int i;
   for (i = 1; i < significant_symbols; ++i) {
     bits += exp_val * (counts[i] + counts[256 - i]);