diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 9456ebf30255..6116e6d92107 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -42,6 +42,7 @@ jobs:
         uses: docker/setup-buildx-action@v1
 
       - name: Login to DockerHub
+        if: ${{ github.event_name != 'pull_request' }}
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
diff --git a/.github/workflows/proto-docker.yml b/.github/workflows/proto-docker.yml
index b127de0a5874..7a9aecfb25ee 100644
--- a/.github/workflows/proto-docker.yml
+++ b/.github/workflows/proto-docker.yml
@@ -31,6 +31,7 @@ jobs:
         uses: docker/setup-buildx-action@v1
 
       - name: Login to DockerHub
+        if: ${{ github.event_name != 'pull_request' }}
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUBTM_USERNAME }}
diff --git a/Makefile b/Makefile
index e629f1b3c11d..f49f95e73449 100644
--- a/Makefile
+++ b/Makefile
@@ -104,7 +104,7 @@ BUILD_TARGETS := build install
 
 build: BUILD_ARGS=-o $(BUILDDIR)/
 build-linux:
-	GOOS=linux GOARCH=arm LEDGER_ENABLED=false $(MAKE) build
+	GOOS=linux GOARCH=amd64 LEDGER_ENABLED=false $(MAKE) build
 
 $(BUILD_TARGETS): go.sum $(BUILDDIR)/
 	go $@ -mod=readonly $(BUILD_FLAGS) $(BUILD_ARGS) ./...
@@ -479,4 +479,4 @@ rosetta-data:
 	docker run --name data_dir_build -t rosetta-ci:latest sh /rosetta/data.sh
 	docker cp data_dir_build:/tmp/data.tar.gz "$(CURDIR)/contrib/rosetta/node/data.tar.gz"
 	docker container rm data_dir_build
-.PHONY: rosetta-data
\ No newline at end of file
+.PHONY: rosetta-data
diff --git a/x/ibc/applications/transfer/module.go b/x/ibc/applications/transfer/module.go
index 764f61e92bba..67c736555b8a 100644
--- a/x/ibc/applications/transfer/module.go
+++ b/x/ibc/applications/transfer/module.go
@@ -379,7 +379,7 @@ func (am AppModule) OnAcknowledgementPacket(
 			sdk.NewAttribute(types.AttributeKeyReceiver, data.Receiver),
 			sdk.NewAttribute(types.AttributeKeyDenom, data.Denom),
 			sdk.NewAttribute(types.AttributeKeyAmount, fmt.Sprintf("%d", data.Amount)),
-			sdk.NewAttribute(types.AttributeKeyAck, fmt.Sprintf("%v", ack)),
+			sdk.NewAttribute(types.AttributeKeyAck, ack.String()),
 		),
 	)