diff --git a/lib/gpu/lal_device.cpp b/lib/gpu/lal_device.cpp
index c98253ba4c..8d2211481d 100644
--- a/lib/gpu/lal_device.cpp
+++ b/lib/gpu/lal_device.cpp
@@ -391,10 +391,9 @@ int DeviceT::set_ocl_params(std::string s_config, const std::string &extra_args)
   #endif
   // workaround for double precision with Intel OpenCL
   #ifdef _DOUBLE_DOUBLE
-  if ((params[4] != "0") && (params[0] != "500")) _ocl_compile_string+="-cl-fast-relaxed-math ";
-  #else
-  if (params[4] != "0") _ocl_compile_string+="-cl-fast-relaxed-math ";
+  if (params[0] == "500") params[4] = "0";
   #endif
+  if (params[4] != "0") _ocl_compile_string+="-cl-fast-relaxed-math ";
   _ocl_compile_string+=std::string(OCL_INT_TYPE)+" "+
     std::string(OCL_PRECISION_COMPILE);
   if (gpu->has_subgroup_support())
diff --git a/lib/gpu/lal_preprocessor.h b/lib/gpu/lal_preprocessor.h
index b3243c3b2e..30dec214e8 100644
--- a/lib/gpu/lal_preprocessor.h
+++ b/lib/gpu/lal_preprocessor.h
@@ -169,7 +169,7 @@
 #define ucl_abs fabs
 #define ucl_erfc erfc
 
-#if defined(FAST_MATH) && !defined(_DOUBLE_DOUBLE)
+#if defined(FAST_MATH) && (FAST_MATH > 0) && !defined(_DOUBLE_DOUBLE)
 
 #define ucl_exp native_exp
 #define ucl_pow pow