diff --git a/openldap.spec b/openldap.spec
index 238973794f65c78326bcc97758c557e68d75fa67..8ced843cef39dadf09f951e0a85a0fd923417d84 100644
--- a/openldap.spec
+++ b/openldap.spec
@@ -128,6 +128,9 @@ popd
 %build
 
 %set_build_flags
+%if "%toolchain" == "clang"
+        export CFLAGS="$CFLAGS -Wno-error=int-conversion"
+%endif
 export CFLAGS="${CFLAGS} ${LDFLAGS} -Wl,--as-needed -DLDAP_CONNECTIONLESS -DLDAP_USE_NON_BLOCKING_TLS"
 
 pushd openldap-%{version}