diff --git a/modules/openstack_project/files/zuul/layout.yaml b/modules/openstack_project/files/zuul/layout.yaml
index 54219977fd..0871b835e1 100644
--- a/modules/openstack_project/files/zuul/layout.yaml
+++ b/modules/openstack_project/files/zuul/layout.yaml
@@ -15,7 +15,7 @@ pipelines:
         - event: patchset-created
         - event: change-restored
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
         - event: comment-added
           require-approval:
             - username: jenkins
@@ -26,7 +26,7 @@ pipelines:
             - username: jenkins
               older-than: 24h
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*reverify( (?:bug|lp)[\s#:]*(\d+))\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*reverify( (?:bug|lp)[\s#:]*(\d+))\s*$
           require-approval:
             - workflow: 1
             - username: jenkins
@@ -137,7 +137,7 @@ pipelines:
       gerrit:
         - event: patchset-created
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
 
   - name: experimental
     description: On-demand pipeline for requesting a run against a set of jobs that are not yet gating. Leave review comment of "check experimental" to run jobs in this pipeline.
@@ -146,7 +146,7 @@ pipelines:
     trigger:
       gerrit:
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*check experimental\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*check experimental\s*$
     success:
       gerrit: {}
     failure:
@@ -207,7 +207,7 @@ pipelines:
         - event: patchset-created
         - event: change-restored
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*recheck(( (?:bug|lp)[\s#:]*(\d+))|( no bug))\s*$
         - event: comment-added
           require-approval:
             - username: jenkins
@@ -227,7 +227,7 @@ pipelines:
     trigger:
       gerrit:
         - event: comment-added
-          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\-]*)?(\n\n)?\s*check experimental\s*$
+          comment_filter: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*check experimental\s*$
     success:
       gerrit: {}
     failure: