diff --git a/SingularityService/src/main/java/com/hubspot/singularity/data/SingularityValidator.java b/SingularityService/src/main/java/com/hubspot/singularity/data/SingularityValidator.java
index dfc0152ec0..3a6a509392 100644
--- a/SingularityService/src/main/java/com/hubspot/singularity/data/SingularityValidator.java
+++ b/SingularityService/src/main/java/com/hubspot/singularity/data/SingularityValidator.java
@@ -74,7 +74,7 @@
 @Singleton
 public class SingularityValidator {
   private static final Joiner JOINER = Joiner.on(" ");
-  private static final Pattern DEPLOY_ID_ILLEGAL_PATTERN = Pattern.compile("[^a-zA-Z0-9_]");
+  private static final Pattern DEPLOY_ID_ILLEGAL_PATTERN = Pattern.compile("[^a-zA-Z0-9_.]");
   private static final Pattern REQUEST_ID_ILLEGAL_PATTERN = Pattern.compile("[^a-zA-Z0-9_-]");
   private static final Pattern DAY_RANGE_REGEXP = Pattern.compile("[0-7]-[0-7]");
   private static final Pattern COMMA_DAYS_REGEXP = Pattern.compile("([0-7],)+([0-7])?");
@@ -274,7 +274,7 @@ public SingularityDeploy checkDeploy(SingularityRequest request,
       deployId = deploy.getId();
     }
 
-    checkBadRequest(deployId != null && ! DEPLOY_ID_ILLEGAL_PATTERN.matcher(deployId).find(), "Id cannot be null or contain characters other than [a-zA-Z0-9_]");
+    checkBadRequest(deployId != null && ! DEPLOY_ID_ILLEGAL_PATTERN.matcher(deployId).find(), "Id cannot be null or contain characters other than [a-zA-Z0-9_.]");
     checkBadRequest(deployId.length() <= maxDeployIdSize, "Deploy id must be %s characters or less, it is %s (%s)", maxDeployIdSize, deployId.length(), deployId);
     checkBadRequest(deploy.getRequestId() != null && deploy.getRequestId().equals(request.getId()), "Deploy id must match request id");
 
diff --git a/SingularityService/src/test/java/com/hubspot/singularity/data/ValidatorTest.java b/SingularityService/src/test/java/com/hubspot/singularity/data/ValidatorTest.java
index dc5c5159ba..bf153d90ce 100644
--- a/SingularityService/src/test/java/com/hubspot/singularity/data/ValidatorTest.java
+++ b/SingularityService/src/test/java/com/hubspot/singularity/data/ValidatorTest.java
@@ -88,7 +88,7 @@ public void itForbidsQuotesInDeployIds() throws Exception {
 
     WebApplicationException exn = (WebApplicationException) catchThrowable(() -> validator.checkDeploy(singularityRequest, singularityDeploy, Collections.emptyList(), Collections.emptyList()));
     assertThat((String) exn.getResponse().getEntity())
-        .contains("[a-zA-Z0-9_]");
+        .contains("[a-zA-Z0-9_.]");
   }
 
   @Test(expected = WebApplicationException.class)