diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf
index 196e33432c9..a90536470b3 100644
--- a/mkspecs/linux-icc/qmake.conf
+++ b/mkspecs/linux-icc/qmake.conf
@@ -42,6 +42,7 @@ QMAKE_CFLAGS_AVX512PF  += -xMIC-AVX512
 QMAKE_CFLAGS_AVX512DQ  += -xCORE-AVX512
 QMAKE_CFLAGS_AVX512BW  += -xCORE-AVX512
 QMAKE_CFLAGS_AVX512VL  += -xCORE-AVX512
+QMAKE_CFLAGS_F16C      += -xAVX
 
 QMAKE_CXX               = icpc
 QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
diff --git a/mkspecs/macx-icc/qmake.conf b/mkspecs/macx-icc/qmake.conf
index bb454377eff..bbf9b4ba7a0 100644
--- a/mkspecs/macx-icc/qmake.conf
+++ b/mkspecs/macx-icc/qmake.conf
@@ -40,6 +40,7 @@ QMAKE_CFLAGS_AVX512PF  += -xMIC-AVX512
 QMAKE_CFLAGS_AVX512DQ  += -xCORE-AVX512
 QMAKE_CFLAGS_AVX512BW  += -xCORE-AVX512
 QMAKE_CFLAGS_AVX512VL  += -xCORE-AVX512
+QMAKE_CFLAGS_F16C      += -xAVX
 
 QMAKE_CXX               = icpc
 QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
diff --git a/mkspecs/win32-icc/qmake.conf b/mkspecs/win32-icc/qmake.conf
index 6e2589b4c49..d73f7a03ef2 100644
--- a/mkspecs/win32-icc/qmake.conf
+++ b/mkspecs/win32-icc/qmake.conf
@@ -33,6 +33,7 @@ QMAKE_CFLAGS_AVX512PF  += -QxMIC-AVX512
 QMAKE_CFLAGS_AVX512DQ  += -QxCORE-AVX512
 QMAKE_CFLAGS_AVX512BW  += -QxCORE-AVX512
 QMAKE_CFLAGS_AVX512VL  += -QxCORE-AVX512
+QMAKE_CFLAGS_F16C       = -QxAVX
 
 QMAKE_CXX               = $$QMAKE_CC
 QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS /Zc:forScope