diff --git a/api/src/main/java/com/google/common/flogger/LogContext.java b/api/src/main/java/com/google/common/flogger/LogContext.java
index 606afc2..76b0133 100644
--- a/api/src/main/java/com/google/common/flogger/LogContext.java
+++ b/api/src/main/java/com/google/common/flogger/LogContext.java
@@ -426,6 +426,7 @@ public final LogSite getLogSite() {
   }
 
   @Override
+  @NullableDecl
   public final TemplateContext getTemplateContext() {
     return templateContext;
   }
diff --git a/api/src/main/java/com/google/common/flogger/backend/LogData.java b/api/src/main/java/com/google/common/flogger/backend/LogData.java
index 1fcaf2e..adc6dbe 100644
--- a/api/src/main/java/com/google/common/flogger/backend/LogData.java
+++ b/api/src/main/java/com/google/common/flogger/backend/LogData.java
@@ -18,6 +18,7 @@
 
 import com.google.common.flogger.LogSite;
 import java.util.logging.Level;
+import org.checkerframework.checker.nullness.compatqual.NullableDecl;
 
 /**
  * A backend API for determining metadata associated with a log statement.
@@ -46,6 +47,7 @@ public interface LogData {
    * Returns the logger name (which is usually a canonicalized class name) or {@code null} if not
    * given.
    */
+  @NullableDecl
   String getLoggerName();
 
   /**
@@ -95,9 +97,10 @@ public interface LogData {
 
   /**
    * Returns a template key for this log statement, or {@code null} if the statement does not
-   * require formatting (in which case the message to be logged can be determined by calling
-   * {@link #getLiteralArgument()}).
+   * require formatting (in which case the message to be logged can be determined by calling* {@link
+   * #getLiteralArgument()}).
    */
+  @NullableDecl
   TemplateContext getTemplateContext();
 
   /**
diff --git a/api/src/test/java/com/google/common/flogger/testing/FakeLogData.java b/api/src/test/java/com/google/common/flogger/testing/FakeLogData.java
index d319746..9cca979 100644
--- a/api/src/test/java/com/google/common/flogger/testing/FakeLogData.java
+++ b/api/src/test/java/com/google/common/flogger/testing/FakeLogData.java
@@ -30,6 +30,7 @@
 import com.google.common.flogger.parser.MessageParser;
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import java.util.logging.Level;
+import org.checkerframework.checker.nullness.compatqual.NullableDecl;
 
 /**
  * A mutable fake {@link LogData} implementation to help test logging backends and other log
@@ -143,6 +144,7 @@ public boolean wasForced() {
   }
 
   @Override
+  @NullableDecl
   public TemplateContext getTemplateContext() {
     return context;
   }