diff --git a/libvmime.spec b/libvmime.spec
index 04edfb8..ae09cde 100644
--- a/libvmime.spec
+++ b/libvmime.spec
@@ -37,7 +37,7 @@ BuildRequires:  doxygen
 BuildRequires:  gcc-c++
 BuildRequires:  inkscape
 BuildRequires:  libgnutls-devel
-%if 0%{?is_opensuse}
+%if !0%{?sle_version}
 BuildRequires:  libgsasl-devel
 %endif
 BuildRequires:  libopenssl-devel