diff --git a/udev/udev-qubes-block.rules b/udev/udev-qubes-block.rules
index 1710a83..79c416e 100644
--- a/udev/udev-qubes-block.rules
+++ b/udev/udev-qubes-block.rules
@@ -16,8 +16,8 @@ ENV{MAJOR}=="253", ENV{DM_NAME}=="origin-*", GOTO="qubes_block_end"
 ENV{MAJOR}=="253", ENV{DM_NAME}=="", GOTO="qubes_block_end"
 
 IMPORT{db}="QUBES_EXPOSED"
-ACTION=="add", IMPORT{program}="/usr/bin/flock /var/run/qubes-udev.lock -c /usr/libexec/qubes/udev-block-add-change"
-ACTION=="change", IMPORT{program}="/usr/bin/flock /var/run/qubes-udev.lock -c /usr/libexec/qubes/udev-block-add-change"
+ACTION=="add", IMPORT{program}="/usr/libexec/qubes/udev-block-add-change"
+ACTION=="change", IMPORT{program}="/usr/libexec/qubes/udev-block-add-change"
 ACTION=="remove", RUN+="/usr/libexec/qubes/udev-block-remove"
 
 LABEL="qubes_block_end"