diff --git a/llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h b/llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h
index cab893b50d192..0fd79d8ff7f39 100644
--- a/llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h
+++ b/llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h
@@ -62,7 +62,7 @@ class PseudoProbeVerifier {
 
 private:
   // Allow a little bias due the rounding to integral factors.
-  constexpr static float DistributionFactorVariance = 0.02;
+  constexpr static float DistributionFactorVariance = 0.02f;
   // Distribution factors from last pass.
   FuncProbeFactorMap FunctionProbeFactors;