diff --git a/checkcliargs.sh b/checkcliargs.sh
deleted file mode 100755
index 480c88f..0000000
--- a/checkcliargs.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-MAIN="org.pitest.mutationtest.commandline.MutationCoverageReport"
-TMPNEW=/tmp/checkcliargs-new
-TMPOLD=/tmp/checkcliargs-old
-
-java -cp "lib/test/*" $MAIN --help >$TMPNEW
-java -cp "examples/lib/test/*" $MAIN --help >$TMPOLD
-
-diff $TMPOLD $TMPNEW
-
-rm -rf $TMPNEW $TMPOLD
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index cab667f..25c1bde 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -1,6 +1,7 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.extension-pmd=com.uwyn.rife2:bld-pmd:0.9.9
+bld.extension-exec=com.uwyn.rife2:bld-exec:1.0.0
 bld.extension-jacoco=com.uwyn.rife2:bld-jacoco-report:0.9.5
 bld.repositories=MAVEN_CENTRAL,MAVEN_LOCAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=
diff --git a/scripts/checkcliargs.sh b/scripts/checkcliargs.sh
new file mode 100755
index 0000000..446c562
--- /dev/null
+++ b/scripts/checkcliargs.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+main="org.pitest.mutationtest.commandline.MutationCoverageReport"
+new=/tmp/checkcliargs-new
+old=/tmp/checkcliargs-old
+
+java -cp "lib/test/*" $main --help >$new
+java -cp "examples/lib/test/*" $main --help >$old
+
+diff $old $new
+
+rm -rf $new $old
diff --git a/cliargs.sh b/scripts/cliargs.sh
similarity index 100%
rename from cliargs.sh
rename to scripts/cliargs.sh
diff --git a/src/bld/java/rife/bld/extension/PitestOperationBuild.java b/src/bld/java/rife/bld/extension/PitestOperationBuild.java
index 677da55..5ea22d3 100644
--- a/src/bld/java/rife/bld/extension/PitestOperationBuild.java
+++ b/src/bld/java/rife/bld/extension/PitestOperationBuild.java
@@ -108,4 +108,13 @@ public class PitestOperationBuild extends Project {
                 .ruleSets("config/pmd.xml")
                 .execute();
     }
+
+    @Override
+    public void test() throws Exception {
+        new ExecOperation()
+                .fromProject(this)
+                .command("scripts/cliargs.sh")
+                .execute();
+        super.test();
+    }
 }
diff --git a/src/test/java/rife/bld/extension/PitestOperationTest.java b/src/test/java/rife/bld/extension/PitestOperationTest.java
index e71e6e2..39dee6e 100644
--- a/src/test/java/rife/bld/extension/PitestOperationTest.java
+++ b/src/test/java/rife/bld/extension/PitestOperationTest.java
@@ -62,7 +62,7 @@ class PitestOperationTest {
     void checkAllParameters() throws IOException {
         var args = Files.readAllLines(Paths.get("src", "test", "resources", "pitest-args.txt"));
 
-        assertThat(args).hasSizeGreaterThan(0);
+        assertThat(args).isNotEmpty();
 
         var params = new PitestOperation()
                 .fromProject(new BaseProject())