diff --git a/tests/test_core_benchmark_fast_atof.c b/tests/test_core_benchmark_fast_atof.c
index 9d1678c..bafd5bb 100644
--- a/tests/test_core_benchmark_fast_atof.c
+++ b/tests/test_core_benchmark_fast_atof.c
@@ -95,7 +95,7 @@ const char* test_internal__benchmark_gmio_fast_atof()
                 bmk_res_array);
 
 #ifndef GMIO_DEBUG_BUILD /* Check only for release builds */
-    UTEST_ASSERT((1.2*bmk_res.func1_exec_time_ms) < bmk_res.func2_exec_time_ms);
+    UTEST_ASSERT((1.05*bmk_res.func1_exec_time_ms) < bmk_res.func2_exec_time_ms);
 #endif
 
     return NULL;