diff --git a/openexr.spec b/openexr.spec
index d554cf5..9581706 100644
--- a/openexr.spec
+++ b/openexr.spec
@@ -143,7 +143,7 @@ make %{?_smp_mflags}
 %check
 # tests takes LOONG, e. g. 20 min, in obs even more that
 # exceed timeout limit 25 min
-echo "\nset_tests_properties(OpenEXR.IlmImf PROPERTIES TIMEOUT 3000)" >> IlmImfTest/CMakeLists.txt
+echo "set_tests_properties(OpenEXR.IlmImf PROPERTIES TIMEOUT 3000)" >> IlmImfTest/CMakeLists.txt
 export LD_LIBRARY_PATH="$PWD/build/IlmImf:$PWD/build/IlmImfUtil:$LD_LIBRARY_PATH"
 %ctest