diff --git a/meta/recipes-devtools/tcltk/tcl/run-ptest b/meta/recipes-devtools/tcltk/tcl/run-ptest
index 8a9f611b0f..be067f13ea 100644
--- a/meta/recipes-devtools/tcltk/tcl/run-ptest
+++ b/meta/recipes-devtools/tcltk/tcl/run-ptest
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-export TCL_LIBRARY=/usr/lib/tcl/ptest/library
+export TCL_LIBRARY=@libdir@/tcl/ptest/library
 export ERROR_ON_FAILURES=1
 export LANG=en-US.UTF-8
 
diff --git a/meta/recipes-devtools/tcltk/tcl_9.0.0.bb b/meta/recipes-devtools/tcltk/tcl_9.0.0.bb
index b67847c526..0d2efa44aa 100644
--- a/meta/recipes-devtools/tcltk/tcl_9.0.0.bb
+++ b/meta/recipes-devtools/tcltk/tcl_9.0.0.bb
@@ -82,6 +82,8 @@ do_install_ptest() {
 	cp ${B}/tcltest ${D}${PTEST_PATH}
 	cp -r ${S}/library ${D}${PTEST_PATH}
 	cp -r ${S}/tests ${D}${PTEST_PATH}
+        # handle multilib
+        sed -i s:@libdir@:${libdir}:g ${D}${PTEST_PATH}/run-ptest
 }
 
 do_install_ptest:append:libc-musl () {