diff --git a/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/function/FunctionConfiguration.java b/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/function/FunctionConfiguration.java
index bc864ed0d..ffd447506 100644
--- a/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/function/FunctionConfiguration.java
+++ b/core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/function/FunctionConfiguration.java
@@ -451,7 +451,7 @@ public class FunctionConfiguration {
 				}
 				if (StringUtils.hasText(functionDefinition) && !shouldNotProcess) {
 					FunctionInvocationWrapper function = functionCatalog.lookup(functionDefinition);
-					if (function != null && !function.isSupplier()) {
+					if (function != null && !function.isSupplier() && functionDefinition.equals(function.getFunctionDefinition())) {
 						this.bindFunctionToDestinations(bindableProxyFactory, functionDefinition, applicationContext.getEnvironment());
 					}
 				}