diff --git a/test/unordered/Jamfile.v2 b/test/unordered/Jamfile.v2
index 6ff1d29d..de9c2ed9 100644
--- a/test/unordered/Jamfile.v2
+++ b/test/unordered/Jamfile.v2
@@ -9,7 +9,7 @@ project unordered-test/unordered
     : requirements
         <warnings>all
         <toolset>intel:<warnings>on
-        <toolset>gcc:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wconversion"
+        <toolset>gcc:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wconversion -Wno-long-long"
         <toolset>darwin:<cxxflags>"-pedantic -Wstrict-aliasing -fstrict-aliasing -Wextra -Wsign-promo -Wunused-parameter -Wconversion"
         #<toolset>gcc:<define>_GLIBCXX_DEBUG
         #<toolset>darwin:<define>_GLIBCXX_DEBUG