diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62c48107b..b252457d5 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1012,5 +1012,7 @@ add_test(fpu_rounding ${CMAKE_COMMAND} -D TEST_PROGRAM=${CMAKE_BINARY_DIR}/${BOX
         -D TEST_ARGS=${CMAKE_SOURCE_DIR}/tests/test26 -D TEST_OUTPUT=tmpfile26.txt
         -D TEST_REFERENCE=${CMAKE_SOURCE_DIR}/tests/ref26.txt
         -P ${CMAKE_SOURCE_DIR}/runTest.cmake )
+
+set_tests_properties(fpu_rounding PROPERTIES ENVIRONMENT "BOX86_DYNAREC_FASTROUND=0")
     
 endif(BOX86LIB)