diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index d93686a440..3f4bbddf33 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -956,6 +956,16 @@ async function getPipelineOptions() {
   const buildPlatformsMap = new Map(buildPlatforms.map(platform => [getTargetKey(platform), platform]));
   const testPlatformsMap = new Map(testPlatforms.map(platform => [getPlatformKey(platform), platform]));
 
+  // No need to run the asan builds when not building a PR.
+  if (!canary) {
+    for (const platform of buildPlatforms) {
+      if (platform.profile === "asan") {
+        const key = getTargetKey(platform);
+        buildPlatformsMap.delete(key);
+      }
+    }
+  }
+
   if (isManual) {
     const { fields } = getOptionsStep();
     const keys = fields?.map(({ key }) => key) ?? [];