diff --git a/internal/directives/git_pr_waiter.go b/internal/directives/git_pr_waiter.go
index 7bb54923f..d4a340d65 100644
--- a/internal/directives/git_pr_waiter.go
+++ b/internal/directives/git_pr_waiter.go
@@ -131,28 +131,28 @@ func (g *gitPRWaiter) runPromotionStep(
 }
 
 func getPRNumber(sharedState State, cfg GitWaitForPRConfig) (int64, error) {
-	if cfg.PRNumberFromOpen == "" {
+	if cfg.PRNumberFromStep == "" {
 		return cfg.PRNumber, nil
 	}
-	stepOutput, exists := sharedState.Get(cfg.PRNumberFromOpen)
+	stepOutput, exists := sharedState.Get(cfg.PRNumberFromStep)
 	if !exists {
 		return 0, fmt.Errorf(
 			"no output found from step with alias %q",
-			cfg.PRNumberFromOpen,
+			cfg.PRNumberFromStep,
 		)
 	}
 	stepOutputMap, ok := stepOutput.(map[string]any)
 	if !ok {
 		return 0, fmt.Errorf(
 			"output from step with alias %q is not a map[string]any",
-			cfg.PRNumberFromOpen,
+			cfg.PRNumberFromStep,
 		)
 	}
 	prNumberAny, exists := stepOutputMap[prNumberKey]
 	if !exists {
 		return 0, fmt.Errorf(
 			"no PR number found in output from step with alias %q",
-			cfg.PRNumberFromOpen,
+			cfg.PRNumberFromStep,
 		)
 	}
 	// If the state was rehydrated from PromotionStatus, which makes use of
@@ -166,7 +166,7 @@ func getPRNumber(sharedState State, cfg GitWaitForPRConfig) (int64, error) {
 	default:
 		return 0, fmt.Errorf(
 			"PR number in output from step with alias %q is not an int64",
-			cfg.PRNumberFromOpen,
+			cfg.PRNumberFromStep,
 		)
 	}
 }
diff --git a/internal/directives/git_pr_waiter_test.go b/internal/directives/git_pr_waiter_test.go
index e51e04207..1a3b83517 100644
--- a/internal/directives/git_pr_waiter_test.go
+++ b/internal/directives/git_pr_waiter_test.go
@@ -36,17 +36,17 @@ func Test_gitPRWaiter_validate(t *testing.T) {
 			},
 		},
 		{
-			name:   "neither prNumber nor prNumberFromOpen specified",
+			name:   "neither prNumber nor PRNumberFromStep specified",
 			config: Config{},
 			expectedProblems: []string{
 				"(root): Must validate one and only one schema",
 			},
 		},
 		{
-			name: "both prNumber and prNumberFromOpen specified",
+			name: "both prNumber and PRNumberFromStep specified",
 			config: Config{
 				"prNumber":         42,
-				"prNumberFromOpen": "fake-step",
+				"PRNumberFromStep": "fake-step",
 			},
 			expectedProblems: []string{
 				"(root): Must validate one and only one schema",