diff --git a/build_files/cmake/platform/platform_apple.cmake b/build_files/cmake/platform/platform_apple.cmake
index 20114191c52..33e817da449 100644
--- a/build_files/cmake/platform/platform_apple.cmake
+++ b/build_files/cmake/platform/platform_apple.cmake
@@ -174,7 +174,7 @@ if(SYSTEMSTUBS_LIBRARY)
   list(APPEND PLATFORM_LINKLIBS SystemStubs)
 endif()
 
-string(APPEND PLATFORM_CFLAGS " -pipe -funsigned-char -fno-strict-aliasing")
+string(APPEND PLATFORM_CFLAGS " -pipe -funsigned-char -fno-strict-aliasing -ffp-contract=off")
 set(PLATFORM_LINKFLAGS
   "-fexceptions -framework CoreServices -framework Foundation -framework IOKit -framework AppKit -framework Cocoa -framework Carbon -framework AudioUnit -framework AudioToolbox -framework CoreAudio -framework Metal -framework QuartzCore"
 )
diff --git a/build_files/cmake/platform/platform_unix.cmake b/build_files/cmake/platform/platform_unix.cmake
index 72de4c59203..a56363dbd43 100644
--- a/build_files/cmake/platform/platform_unix.cmake
+++ b/build_files/cmake/platform/platform_unix.cmake
@@ -803,8 +803,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
   # Automatically turned on when building with "-march=native". This is
   # explicitly turned off here as it will make floating point math give a bit
   # different results. This will lead to automated test failures. So disable
-  # this until we support it. Seems to default to off in clang and the intel
-  # compiler.
+  # this until we support it.
   set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off")
 
   # `maybe-uninitialized` is unreliable in release builds, but fine in debug builds.
@@ -892,7 +891,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
 
 # CLang is the same as GCC for now.
 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
-  set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing")
+  set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off")
 
   if(WITH_LINKER_MOLD AND _IS_LINKER_DEFAULT)
     find_program(MOLD_BIN "mold")