diff --git a/ci/Jenkinsfile.android b/ci/Jenkinsfile.android
index 7492cc976d..210fbc54bf 100644
--- a/ci/Jenkinsfile.android
+++ b/ci/Jenkinsfile.android
@@ -1,5 +1,8 @@
 library 'status-jenkins-lib@v1.4.3'
 
+/* Options section can't access functions in objects. */
+def isPRBuild = utils.isPRBuild()
+
 pipeline {
   agent { label 'linux && x86_64 && nix-2.8' }
 
@@ -15,6 +18,10 @@ pipeline {
     ))
     /* Allows combined build to copy */
     copyArtifactPermission('/status-react/*')
+    /* Abort old PR builds. */
+    disableConcurrentBuilds(
+      abortPrevious: isPRBuild
+    )
   }
 
   parameters {
@@ -44,7 +51,6 @@ pipeline {
         script {
           btype = utils.getBuildType()
           print "Running ${btype} build!"
-          jenkins.abortPreviousRunningBuilds()
           /* Cleanup and Prep */
           commonPrep(btype)
         }
diff --git a/ci/Jenkinsfile.ios b/ci/Jenkinsfile.ios
index 873f937a01..8775079bd3 100644
--- a/ci/Jenkinsfile.ios
+++ b/ci/Jenkinsfile.ios
@@ -1,5 +1,8 @@
 library 'status-jenkins-lib@v1.4.3'
 
+/* Options section can't access functions in objects. */
+def isPRBuild = utils.isPRBuild()
+
 pipeline {
   agent { label 'macos && x86_64 && nix-2.8 && xcode-13.3' }
 
@@ -23,6 +26,10 @@ pipeline {
     ))
     /* Allows combined build to copy */
     copyArtifactPermission('/status-react/*')
+    /* Abort old PR builds. */
+    disableConcurrentBuilds(
+      abortPrevious: isPRBuild
+    )
   }
 
   environment {
@@ -43,7 +50,6 @@ pipeline {
         script {
           btype = utils.getBuildType()
           print "Running ${btype} build!"
-          jenkins.abortPreviousRunningBuilds()
           /* Cleanup and Prep */
           commonPrep(btype)
         }