diff --git a/ext/jdbc/build.gradle b/ext/jdbc/build.gradle
index 9b73b204b..a43b9d02b 100644
--- a/ext/jdbc/build.gradle
+++ b/ext/jdbc/build.gradle
@@ -1,3 +1,3 @@
 plugins { id 'java' }
-apply from: /gradle/gradle_scripts/java.gradle
-apply from: /gradle/gradle_scripts/extension.gradle
+apply from: "/gradle/gradle_scripts/java.gradle"
+apply from: "/gradle/gradle_scripts/extension.gradle"
diff --git a/ext/jdbcx/build.gradle b/ext/jdbcx/build.gradle
index 9b73b204b..a43b9d02b 100644
--- a/ext/jdbcx/build.gradle
+++ b/ext/jdbcx/build.gradle
@@ -1,3 +1,3 @@
 plugins { id 'java' }
-apply from: /gradle/gradle_scripts/java.gradle
-apply from: /gradle/gradle_scripts/extension.gradle
+apply from: "/gradle/gradle_scripts/java.gradle"
+apply from: "/gradle/gradle_scripts/extension.gradle"
diff --git a/ext/office/build.gradle b/ext/office/build.gradle
index 9b73b204b..a43b9d02b 100644
--- a/ext/office/build.gradle
+++ b/ext/office/build.gradle
@@ -1,3 +1,3 @@
 plugins { id 'java' }
-apply from: /gradle/gradle_scripts/java.gradle
-apply from: /gradle/gradle_scripts/extension.gradle
+apply from: "/gradle/gradle_scripts/java.gradle"
+apply from: "/gradle/gradle_scripts/extension.gradle"
diff --git a/ext/procx/build.gradle b/ext/procx/build.gradle
index 9b73b204b..a43b9d02b 100644
--- a/ext/procx/build.gradle
+++ b/ext/procx/build.gradle
@@ -1,3 +1,3 @@
 plugins { id 'java' }
-apply from: /gradle/gradle_scripts/java.gradle
-apply from: /gradle/gradle_scripts/extension.gradle
+apply from: "/gradle/gradle_scripts/java.gradle"
+apply from: "/gradle/gradle_scripts/extension.gradle"