diff --git a/scripts/protoc_installer.sh b/scripts/protoc_installer.sh
index 8772b1b07b72..1ec2ca46e625 100644
--- a/scripts/protoc_installer.sh
+++ b/scripts/protoc_installer.sh
@@ -2,7 +2,8 @@
 # Install protoc
 PROTOC_VERSION="25.2"
 
-# Function to download pre-built binaries for Linux
+# Function to download pre-built binaries for Linux with
+# ARCH as $1, OS as $2, and WORKDIR as $3 arguments.
 download_binary() {
   # Download URL (adjust if a newer release is available)
   DOWNLOAD_URL="https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-$2-$1.zip"
@@ -13,7 +14,8 @@ download_binary() {
   rm "protoc-${PROTOC_VERSION}-$2-$1.zip"
 }
 
-download_protoc() {
+# Function to install protoc with WORKDIR as argument
+install_protoc() {
   # Determine architecture
   if [[ $(uname -m) == "x86_64" ]]; then
     ARCH="x86_64"
diff --git a/scripts/regenerate.sh b/scripts/regenerate.sh
index 60cd91fa9907..5e6368a20165 100755
--- a/scripts/regenerate.sh
+++ b/scripts/regenerate.sh
@@ -22,7 +22,7 @@ function finish {
 }
 trap finish EXIT
 
-export GOBIN="${WORKDIR}"/bin
+GOBIN="${WORKDIR}"/bin
 export PATH="${GOBIN}:${PATH}"
 mkdir -p "${GOBIN}"
 
@@ -49,7 +49,7 @@ echo "curl https://raw.githubusercontent.com/googleapis/googleapis/master/google
 curl --silent https://raw.githubusercontent.com/googleapis/googleapis/master/google/rpc/code.proto > "${WORKDIR}/googleapis/google/rpc/code.proto"
 
 source ./scripts/protoc_installer.sh
-download_protoc $WORKDIR
+install_protoc $WORKDIR
 
 mkdir -p "${WORKDIR}/out"
 
@@ -83,7 +83,6 @@ SOURCES=(
 # Note that the protos listed here are all for testing purposes. All protos to
 # be used externally should have a go_package option (and they don't need to be
 # listed here).
-# listed here).
 OPTS=Mgrpc/core/stats.proto=google.golang.org/grpc/interop/grpc_testing/core,\
 Mgrpc/testing/benchmark_service.proto=google.golang.org/grpc/interop/grpc_testing,\
 Mgrpc/testing/stats.proto=google.golang.org/grpc/interop/grpc_testing,\
diff --git a/scripts/vet-proto.sh b/scripts/vet-proto.sh
index 76c35a1c0f45..cdfbebf8273e 100755
--- a/scripts/vet-proto.sh
+++ b/scripts/vet-proto.sh
@@ -30,7 +30,7 @@ if [[ "$1" = "-install" ]]; then
     popd
   elif [[ -z "${VET_SKIP_PROTO}" ]]; then
     source ./scripts/protoc_installer.sh
-    download_protoc
+    install_protoc
     protoc --version
   else
     # TODO: replace with install protoc when https://github.com/grpc/grpc-go/pull/7064 is merged.