diff --git a/docs/configuration.md b/docs/configuration.md
index 08a9733a..daa79931 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -112,9 +112,9 @@ Just as with the C++11 conformance toggles, these toggles can be disabled by usi
 ## `CATCH_CONFIG_FAST_COMPILE`
 Defining this flag speeds up compilation of test files by ~20%, by making 2 changes:
 * The `-b` (`--break`) flag no longer makes Catch break into debugger in the same stack frame as the failed test, but rather in a stack frame *below*.
-* The `REQUIRE` family of macros (`REQUIRE`, `REQUIRE_FALSE` and `REQUIRE_THAT`) no longer uses local try-catch block.
+* The `REQUIRE` family of macros (`REQUIRE`, `REQUIRE_FALSE` and `REQUIRE_THAT`) no longer uses local try-catch block. This disables exception translation, but should not lead to false negatives.
 
-`CATCH_CONFIG_FAST_COMPILE` has to be either defined, or not defined, in all translation units that are linked into single test binary, or the behaviour of setting `-b` flag will be unpredictable.
+`CATCH_CONFIG_FAST_COMPILE` has to be either defined, or not defined, in all translation units that are linked into single test binary, or the behaviour of setting `-b` flag and throwing unexpected exceptions will be unpredictable.
 
 # Windows header clutter