diff --git a/springdoc-openapi-common/src/main/java/org/springdoc/core/ParameterId.java b/springdoc-openapi-common/src/main/java/org/springdoc/core/ParameterId.java
index 579cebe42..466e3f8cd 100644
--- a/springdoc-openapi-common/src/main/java/org/springdoc/core/ParameterId.java
+++ b/springdoc-openapi-common/src/main/java/org/springdoc/core/ParameterId.java
@@ -141,6 +141,6 @@ public boolean equals(Object o) {
 
 	@Override
 	public int hashCode() {
-		return Objects.hash(pName, paramType, $ref);
+		return Objects.hash(pName);
 	}
 }