diff --git a/libvmime.spec b/libvmime.spec
index 52e3a10..b702174 100644
--- a/libvmime.spec
+++ b/libvmime.spec
@@ -114,7 +114,7 @@ cmake . \
 %endif
 	-DVMIME_HAVE_TLS_SUPPORT:BOOL=ON \
 	-DVMIME_BUILD_STATIC_LIBRARY:BOOL=OFF \
-	-DCMAKE_RELEASE_TYPE:STRING="RelWithDebInfo" \
+	-DCMAKE_BUILD_TYPE:STRING="RelWithDebInfo" \
 	-DCMAKE_INSTALL_PREFIX:PATH="%_prefix" \
 	-DCMAKE_CXX_FLAGS_DEBUG:STRING="-g" \
 %if 0%{?suse_version} >= 1310