diff --git a/src/main/groovy/com/lesfurets/jenkins/unit/BasePipelineTest.groovy b/src/main/groovy/com/lesfurets/jenkins/unit/BasePipelineTest.groovy
index 88e9232c..f4548dd9 100644
--- a/src/main/groovy/com/lesfurets/jenkins/unit/BasePipelineTest.groovy
+++ b/src/main/groovy/com/lesfurets/jenkins/unit/BasePipelineTest.groovy
@@ -269,7 +269,7 @@ abstract class BasePipelineTest {
             }
 
             list.each {
-                def item = it.split('=')
+                def item = it.split('=', 2)
                 assert item.size() == 2, "withEnv list does not look right: ${list.toString()}"
                 addEnvVar(item[0], item[1])
             }