diff --git a/openbabel.spec b/openbabel.spec
index 9c75f00..d24e644 100644
--- a/openbabel.spec
+++ b/openbabel.spec
@@ -212,7 +212,11 @@ export CXXFLAGS="%{optflags} -DEIGEN_ALTIVEC_DISABLE_MMA"
  -DRUBY_BINDINGS:BOOL=ON \
  -DWITH_MAEPARSER:BOOL=OFF \
  -DWITH_COORDGEN:BOOL=OFF \
+%if 0%{?rhel}
  -DOPENBABEL_USE_SYSTEM_INCHI=false \
+%else
+ -DOPENBABEL_USE_SYSTEM_INCHI=true \
+%endif
  -DENABLE_VERSIONED_FORMATS=false \
  -DRUN_SWIG=true \
  -DENABLE_TESTS:BOOL=ON \