diff --git a/meta-python/recipes-devtools/python/python3-python-multipart_0.0.12.bb b/meta-python/recipes-devtools/python/python3-python-multipart_0.0.12.bb
index 340e297b83..b3c018629c 100644
--- a/meta-python/recipes-devtools/python/python3-python-multipart_0.0.12.bb
+++ b/meta-python/recipes-devtools/python/python3-python-multipart_0.0.12.bb
@@ -12,7 +12,7 @@ SRC_URI += " \
 	file://run-ptest \
 "
 
-RDEPENDS:${PN}-ptest = " \
+RDEPENDS:${PN}-ptest += " \
 	python3-pytest \
 	python3-pyyaml \
 	python3-unittest-automake-output \