diff --git a/buildScripts/setup.ant.xml b/buildScripts/setup.ant.xml
index f81c5134..2a9104eb 100644
--- a/buildScripts/setup.ant.xml
+++ b/buildScripts/setup.ant.xml
@@ -25,7 +25,7 @@ This buildfile is part of projectlombok.org. It sets up the build itself.
 	</description>
 	
 	<!-- increment this number to force a clean of the 'build' dir -->
-	<property name="build.version" value="2020-12-04_001" />
+	<property name="build.version" value="2021-03-18_001" />
 	
 	<property name="pattern.jdk11plus" value="^(\d\d\d+|1[1-9]|[2-9]\d)(\..*)?$" />
 	<property name="ivy.retrieve.pattern" value="lib/[conf]/[organisation]-[artifact].[ext]" />
diff --git a/src/spiProcessor/lombok/spi/SpiProcessor.java b/src/spiProcessor/lombok/spi/SpiProcessor.java
index 975a85c7..4ad27bbe 100644
--- a/src/spiProcessor/lombok/spi/SpiProcessor.java
+++ b/src/spiProcessor/lombok/spi/SpiProcessor.java
@@ -222,7 +222,7 @@ public class SpiProcessor extends AbstractProcessor {
 		}
 		
 		for (TypeMirror spiType : spiTypes) {
-			String spiTypeName = toElement(spiType).getQualifiedName().toString();
+			String spiTypeName = createProperQualifiedName(toElement(spiType));
 			String createProperQualifiedName = createProperQualifiedName(elem);
 			data.getService(spiTypeName).addProvider(createProperQualifiedName);
 		}