diff --git a/libdevice/imf_bf16.hpp b/libdevice/imf_bf16.hpp
index a7345658a8b37..721c930a0f1a5 100644
--- a/libdevice/imf_bf16.hpp
+++ b/libdevice/imf_bf16.hpp
@@ -39,7 +39,8 @@ __float2bfloat16(float f, __iml_rounding_mode rounding_mode) {
       return bf16_sign ? 0xFF80 : 0x7F80;
     else {
       // input fp32 val is Nan.
-      bf16_mant = (f_mant & 0x400000) ? 0x40 : 0x3F;
+      // returns a quiet NaN
+      bf16_mant = 0x40;
       return (bf16_sign << 15) | (bf16_exp << 7) | bf16_mant;
     }
   }
@@ -90,8 +91,8 @@ static _iml_bf16_internal __double2bfloat16(double d) {
     if (!fp64_mant) {
       return bf16_sign ? 0xFF80 : 0x7F80;
     } else {
-      // returns a signaling or quiet Nan
-      return (fp64_mant & 0x8'0000'0000'0000) ? 0x7FC0 : 0x7F81;
+      // returns a quiet Nan
+      return 0x7FC0;
     }
   }
 
diff --git a/sycl/test-e2e/DeviceLib/imf/double2bfloat16.cpp b/sycl/test-e2e/DeviceLib/imf/double2bfloat16.cpp
index f0b445094db4d..060182472e6e8 100644
--- a/sycl/test-e2e/DeviceLib/imf/double2bfloat16.cpp
+++ b/sycl/test-e2e/DeviceLib/imf/double2bfloat16.cpp
@@ -10,11 +10,11 @@ int check_nan_convert(std::initializer_list<double> Inputs,
                       const std::vector<uint16_t> &Outputs) {
   assert(Inputs.size() == Outputs.size());
   size_t Idx = 0;
-  bool Signaling = false;
+  bool Signaling = true;
   for (const double *It = Inputs.begin(); It != Inputs.end(); ++It) {
     uint16_t bf16_bits = Outputs[Idx];
     if (is_bfloat16_nan(bf16_bits, Signaling)) {
-      if (Signaling != is_signaling_nan(*It))
+      if (Signaling)
         return 1;
     } else
       return 1;
diff --git a/sycl/test-e2e/DeviceLib/imf/float2bfloat16.cpp b/sycl/test-e2e/DeviceLib/imf/float2bfloat16.cpp
index 3ff81529703ea..ea0eb894ea6a4 100644
--- a/sycl/test-e2e/DeviceLib/imf/float2bfloat16.cpp
+++ b/sycl/test-e2e/DeviceLib/imf/float2bfloat16.cpp
@@ -10,11 +10,11 @@ int check_nan_convert(std::initializer_list<float> Inputs,
                       const std::vector<uint16_t> &Outputs) {
   assert(Inputs.size() == Outputs.size());
   size_t Idx = 0;
-  bool Signaling = false;
+  bool Signaling = true;
   for (const float *It = Inputs.begin(); It != Inputs.end(); ++It) {
     uint16_t bf16_bits = Outputs[Idx];
     if (is_bfloat16_nan(bf16_bits, Signaling)) {
-      if (Signaling != is_signaling_nan(*It))
+      if (Signaling)
         return 1;
     } else
       return 1;