diff --git a/error-prone-contrib/src/main/java/tech/picnic/errorprone/refastertemplates/ReactorTemplates.java b/error-prone-contrib/src/main/java/tech/picnic/errorprone/refastertemplates/ReactorTemplates.java
index 7bcef1ee6f9..f0a5e46159d 100644
--- a/error-prone-contrib/src/main/java/tech/picnic/errorprone/refastertemplates/ReactorTemplates.java
+++ b/error-prone-contrib/src/main/java/tech/picnic/errorprone/refastertemplates/ReactorTemplates.java
@@ -202,7 +202,7 @@ StepVerifier.FirstStep<? extends T> before(Mono<T> mono) {
     }
 
     @AfterTemplate
-    StepVerifier.FirstStep<? extends T> after(Flux<T> mono) {
+    StepVerifier.FirstStep<? extends T> after(Mono<T> mono) {
       return mono.as(StepVerifier::create);
     }
   }