diff --git a/python/python3-poetry-core/python3-poetry-core.SlackBuild b/python/python3-poetry-core/python3-poetry-core.SlackBuild
index 41e224d14b..d82a36037c 100644
--- a/python/python3-poetry-core/python3-poetry-core.SlackBuild
+++ b/python/python3-poetry-core/python3-poetry-core.SlackBuild
@@ -25,7 +25,7 @@
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=python3-poetry-core
-SRCNAM=$(echo $PRGNAM | sed -e "s/python3-//" -e "s/-/_/")
+SRCNAM=$(echo ${PRGNAM#python3-*} | sed -e "s/-/_/")
 VERSION=${VERSION:-1.5.2}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}