diff --git a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/MatrixVariableParameterProcessor.java b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/MatrixVariableParameterProcessor.java
index d8b3a827..ea26f3c5 100644
--- a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/MatrixVariableParameterProcessor.java
+++ b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/annotation/MatrixVariableParameterProcessor.java
@@ -72,8 +72,8 @@ public class MatrixVariableParameterProcessor implements AnnotatedParameterProce
 	private String expandMap(Object object) {
 		Map<String, Object> paramMap = (Map) object;
 
-		return paramMap.keySet().stream().map(key -> ";" + key + "=" + paramMap.get(key).toString())
-				.collect(Collectors.joining());
+		return paramMap.keySet().stream().filter(key -> paramMap.get(key) != null)
+				.map(key -> ";" + key + "=" + paramMap.get(key).toString()).collect(Collectors.joining());
 	}
 
 }