diff --git a/javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java b/javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java
index 0028abdd584..5258f03e60c 100644
--- a/javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java
+++ b/javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java
@@ -939,7 +939,7 @@ public class ASTExtractor {
 
         // Extract optional parameters
         if (nd.getOptionalParameterIndices().contains(i)) {
-          trapwriter.addTuple("isOptionalParameterDeclaration", paramKey);
+          trapwriter.addTuple("is_optional_parameter_declaration", paramKey);
         }
         ++i;
       }
diff --git a/javascript/ql/src/semmle/javascript/Aliases.qll b/javascript/ql/src/semmle/javascript/Aliases.qll
index d8a71937d1f..ba1c75d21de 100644
--- a/javascript/ql/src/semmle/javascript/Aliases.qll
+++ b/javascript/ql/src/semmle/javascript/Aliases.qll
@@ -205,3 +205,8 @@ deprecated predicate isOptionalMember(Property id) { is_optional_member(id) }
  * Use the `hasDefiniteAssignmentAssertion` method on the `FieldDeclaration`/`VariableDeclarator` classes instead.
  */ 
 deprecated predicate hasDefiniteAssignmentAssertion(ASTNode id) { has_definite_assignment_assertion(id) }
+/**
+ * Alias for the predicate `is_optional_parameter_declaration` defined in the .dbscheme.
+ * Use `Parameter#isDeclaredOptional()` instead.
+ */ 
+deprecated predicate isOptionalParameterDeclaration(Parameter parameter) { is_optional_parameter_declaration(parameter) }
diff --git a/javascript/ql/src/semmle/javascript/Variables.qll b/javascript/ql/src/semmle/javascript/Variables.qll
index adb433deb12..9e45cb69310 100644
--- a/javascript/ql/src/semmle/javascript/Variables.qll
+++ b/javascript/ql/src/semmle/javascript/Variables.qll
@@ -782,7 +782,7 @@ class Parameter extends BindingPattern {
    * function f(x?: number) {}
    * ```
    */
-  predicate isDeclaredOptional() { isOptionalParameterDeclaration(this) }
+  predicate isDeclaredOptional() { is_optional_parameter_declaration(this) }
 }
 
 /**
diff --git a/javascript/ql/src/semmlecode.javascript.dbscheme b/javascript/ql/src/semmlecode.javascript.dbscheme
index 7094f895327..444ad8f2b17 100644
--- a/javascript/ql/src/semmlecode.javascript.dbscheme
+++ b/javascript/ql/src/semmlecode.javascript.dbscheme
@@ -527,7 +527,7 @@ has_readonly_keyword (int id: @property ref);
 has_type_keyword (int id: @import_or_export_declaration ref);
 is_optional_member (int id: @property ref);
 has_definite_assignment_assertion (int id: @field_or_vardeclarator ref);
-isOptionalParameterDeclaration (unique int parameter: @pattern ref);
+is_optional_parameter_declaration (unique int parameter: @pattern ref);
 
 #keyset[constructor, param_index]
 parameter_fields(
diff --git a/javascript/ql/src/semmlecode.javascript.dbscheme.stats b/javascript/ql/src/semmlecode.javascript.dbscheme.stats
index b6d37e176e4..272436c454d 100644
--- a/javascript/ql/src/semmlecode.javascript.dbscheme.stats
+++ b/javascript/ql/src/semmlecode.javascript.dbscheme.stats
@@ -8029,7 +8029,7 @@
 <dependencies/>
 </relation>
 <relation>
-<name>isOptionalParameterDeclaration</name>
+<name>is_optional_parameter_declaration</name>
 <cardinality>3966</cardinality>
 <columnsizes>
 <e>
diff --git a/javascript/upgrades/c73fbfca57f3d593b9ff50c6aa3a886d6888efec/upgrade.properties b/javascript/upgrades/c73fbfca57f3d593b9ff50c6aa3a886d6888efec/upgrade.properties
index 8675148972c..21a4a4fcba7 100644
--- a/javascript/upgrades/c73fbfca57f3d593b9ff50c6aa3a886d6888efec/upgrade.properties
+++ b/javascript/upgrades/c73fbfca57f3d593b9ff50c6aa3a886d6888efec/upgrade.properties
@@ -56,3 +56,5 @@ is_optional_member.rel: reorder isOptionalMember.rel(int id) id
 isOptionalMember.rel: delete
 has_definite_assignment_assertion.rel: reorder hasDefiniteAssignmentAssertion.rel(int id) id
 hasDefiniteAssignmentAssertion.rel: delete
+is_optional_parameter_declaration.rel: reorder isOptionalParameterDeclaration.rel(int parameter) parameter
+isOptionalParameterDeclaration.rel: delete