diff --git a/packages/compiler-sfc/src/compileTemplate.ts b/packages/compiler-sfc/src/compileTemplate.ts
index 211308133..9a99c7a09 100644
--- a/packages/compiler-sfc/src/compileTemplate.ts
+++ b/packages/compiler-sfc/src/compileTemplate.ts
@@ -171,7 +171,7 @@ function doCompileTemplate({
     nodeTransforms = [transformAssetUrl, transformSrcset]
   }
 
-  if (ssr && !compilerOptions.ssrCssVars) {
+  if (ssr && compilerOptions.ssrCssVars == null) {
     warnOnce(
       `compileTemplate is called with \`ssr: true\` but no ` +
         `corresponding \`ssrCssVars\` option. The value can be generated by ` +