diff --git a/dev-libs/libbson/libbson-1.30.6.ebuild b/dev-libs/libbson/libbson-1.30.6.ebuild
index a0ab64e..cd6a2d9 100644
--- a/dev-libs/libbson/libbson-1.30.6.ebuild
+++ b/dev-libs/libbson/libbson-1.30.6.ebuild
@@ -52,7 +52,7 @@ PATCHES=(
 
 src_unpack() {
         if use verify-sig; then
-                verify-sig_verify_detached "${DISTDIR}"/${P}.tar.gz{,.asc}
+                verify-sig_verify_detached "${DISTDIR}"/mongo-c-driver-${PV}.tar.gz{,.asc}
         fi
         default
 }