diff --git a/build.xml b/build.xml
index f23ffdcca49a5c83d3ac81530a95e5c44b0b2429..8dd3d67d02fed007b80d9ebf1bdfee2ba9ca1ee0 100644
--- a/build.xml
+++ b/build.xml
@@ -19,6 +19,7 @@
   <property name="mysqlrootpass" value="password" />
   <property name="pgsqlhost" value="localhost" />
   <property name="pgsqlrootuser" value="postgres" />
+  <property name="phpunit_extra_params" value="" />
   <property name="php-cs-fixers" value="no_blank_lines_before_namespaces,function_call_space,trailing_spaces,unused_use,lowercase_keywords,encoding,parenthesis,php_closing_tag,visibility,duplicate_semicolon,extra_empty_lines,no_blank_lines_after_class_opening,no_empty_lines_after_phpdocs,operators_spaces,spaces_before_semicolon,ternary_spaces,concat_with_spaces,short_array_syntax" />
 
 
@@ -108,12 +109,12 @@
 
   <!-- PHPUnit -->
   <target name="phpunit" description="Run tests">
-    <exec dir="${srcdir}/module/VuFind/tests" command="NODE_PATH=${nodepath} VUFIND_LOCAL_DIR=${srcdir}/local VUFIND_URL=${vufindurl} phpunit -dzend.enable_gc=0 --log-junit ${builddir}/reports/phpunit.xml --coverage-clover ${builddir}/reports/coverage/clover.xml --coverage-html ${builddir}/reports/coverage/" passthru="true" checkreturn="true" />
+    <exec dir="${srcdir}/module/VuFind/tests" command="NODE_PATH=${nodepath} VUFIND_LOCAL_DIR=${srcdir}/local VUFIND_URL=${vufindurl} phpunit -dzend.enable_gc=0 --log-junit ${builddir}/reports/phpunit.xml --coverage-clover ${builddir}/reports/coverage/clover.xml --coverage-html ${builddir}/reports/coverage/ ${phpunit_extra_params}" passthru="true" checkreturn="true" />
   </target>
 
   <!-- PHPUnit without logging output -->
   <target name="phpunitfast" description="Run tests">
-    <exec dir="${srcdir}/module/VuFind/tests" command="NODE_PATH=${nodepath} VUFIND_LOCAL_DIR=${srcdir}/local VUFIND_URL=${vufindurl} phpunit -dzend.enable_gc=0" passthru="true" checkreturn="true" />
+    <exec dir="${srcdir}/module/VuFind/tests" command="NODE_PATH=${nodepath} VUFIND_LOCAL_DIR=${srcdir}/local VUFIND_URL=${vufindurl} phpunit -dzend.enable_gc=0 ${phpunit_extra_params}" passthru="true" checkreturn="true" />
   </target>
 
   <!-- Install and Activate VuFind -->