diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/DeleteProjectTask.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/DeleteProjectTask.java
index 44c6556..527b746 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/DeleteProjectTask.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/DeleteProjectTask.java
@@ -63,7 +63,7 @@
       if (!httpResult.isSuccessful()) {
         throw new IOException(httpResult.getMessage().orElse("Unknown"));
       }
-      logger.atFine().log("Successfully deleted project {} on remote {}", project.get(), uri);
+      logger.atFine().log("Successfully deleted project %s on remote %s", project.get(), uri);
     } catch (URISyntaxException | IOException e) {
       String errorMessage =
           String.format("Cannot delete project %s on remote site %s.", project, uri);
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/Source.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/Source.java
index 28aa541..71ec666 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/Source.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/Source.java
@@ -775,7 +775,7 @@
               updateHeadFactory.create(this, apiURI, project, newHead), 0, TimeUnit.SECONDS);
     } catch (URISyntaxException e) {
       logger.atSevere().withCause(e).log(
-          "Could not schedule HEAD pull-replication for project {}", project.get());
+          "Could not schedule HEAD pull-replication for project %s", project.get());
     }
   }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/UpdateHeadTask.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/UpdateHeadTask.java
index bded7d1..e169eb3 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/UpdateHeadTask.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/UpdateHeadTask.java
@@ -65,9 +65,8 @@
         throw new IOException(httpResult.getMessage().orElse("Unknown"));
       }
       logger.atFine().log(
-          "Successfully updated HEAD of project {} on remote {}",
-          project.get(),
-          apiURI.toASCIIString());
+          "Successfully updated HEAD of project %s on remote %s",
+          project.get(), apiURI.toASCIIString());
     } catch (IOException e) {
       String errorMessage =
           String.format(
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/ProjectInitializationAction.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/ProjectInitializationAction.java
index 33c1353..63d32c4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/ProjectInitializationAction.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/api/ProjectInitializationAction.java
@@ -111,7 +111,7 @@
     }
     Optional<URIish> maybeUri = gerritConfigOps.getGitRepositoryURI(projectName);
     if (!maybeUri.isPresent()) {
-      logger.atSevere().log("Cannot initialize project '{}'", projectName);
+      logger.atSevere().log("Cannot initialize project '%s'", projectName);
       return false;
     }
     LocalFS localFS = new LocalFS(maybeUri.get());