diff --git a/build/bin/update-actions.sh b/build/bin/update-actions.sh
index ea38cbf..c75d95b 100755
--- a/build/bin/update-actions.sh
+++ b/build/bin/update-actions.sh
@@ -37,7 +37,7 @@ for d in "${CWD}/../Dockerfiles/"*; do
 	###
 	### Set placeholder in GitHub Actions
 	###
-	sed -i'' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_action.yml"
-	sed -i'' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_action_schedule.yml"
-	sed -i'' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_params.yml"
+	sed -i '' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_action.yml"
+	sed -i '' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_action_schedule.yml"
+	sed -i '' "s/__PROJECT__/${CREDIT_PROJECT}/g" "${CWD}/../.github/workflows/${CREDIT_PROJECT}_params.yml"
 done
diff --git a/build/generate-project.sh b/build/generate-project.sh
index b19ddb8..a2ac7b5 100755
--- a/build/generate-project.sh
+++ b/build/generate-project.sh
@@ -91,8 +91,8 @@ done
 ### Set placeholders in Dockerfiles
 ###
 for version in "${PHP_VERSIONS[@]}"; do
-	sed -i'' "s/__MAINTAINER_NAME__/${MAINTAINER_NAME}/g" "${CWD}/../Dockerfiles/${PROJECT}/Dockerfile-${version}"
-	sed -i'' "s/__MAINTAINER_MAIL__/${MAINTAINER_MAIL}/g" "${CWD}/../Dockerfiles/${PROJECT}/Dockerfile-${version}"
+	sed -i '' "s/__MAINTAINER_NAME__/${MAINTAINER_NAME}/g" "${CWD}/../Dockerfiles/${PROJECT}/Dockerfile-${version}"
+	sed -i '' "s/__MAINTAINER_MAIL__/${MAINTAINER_MAIL}/g" "${CWD}/../Dockerfiles/${PROJECT}/Dockerfile-${version}"
 done
 
 
@@ -116,9 +116,9 @@ cp "${CWD}/skeleton/test.sh" "${CWD}/../Dockerfiles/${PROJECT}/tests/test.sh"
 ### Copy README.md
 ###
 cp "${CWD}/skeleton/README.md" "${CWD}/../Dockerfiles/${PROJECT}/README.md"
-sed -i'' "s/__PROJECT__/${PROJECT}/g"                 "${CWD}/../Dockerfiles/${PROJECT}/README.md"
-sed -i'' "s/__GITHUB_NAME__/${GITHUB_NAME}/g"         "${CWD}/../Dockerfiles/${PROJECT}/README.md"
-sed -i'' "s/__MAINTAINER_NAME__/${MAINTAINER_NAME}/g" "${CWD}/../Dockerfiles/${PROJECT}/README.md"
+sed -i '' "s/__PROJECT__/${PROJECT}/g"                 "${CWD}/../Dockerfiles/${PROJECT}/README.md"
+sed -i '' "s/__GITHUB_NAME__/${GITHUB_NAME}/g"         "${CWD}/../Dockerfiles/${PROJECT}/README.md"
+sed -i '' "s/__MAINTAINER_NAME__/${MAINTAINER_NAME}/g" "${CWD}/../Dockerfiles/${PROJECT}/README.md"
 
 
 #---------------------------------------------------------------------------------------------------