diff --git a/instrumentation/resources/library/src/main/java/io/opentelemetry/instrumentation/resources/ProcessResource.java b/instrumentation/resources/library/src/main/java/io/opentelemetry/instrumentation/resources/ProcessResource.java
index a1e881fe3575..4d2700555a3a 100644
--- a/instrumentation/resources/library/src/main/java/io/opentelemetry/instrumentation/resources/ProcessResource.java
+++ b/instrumentation/resources/library/src/main/java/io/opentelemetry/instrumentation/resources/ProcessResource.java
@@ -61,9 +61,9 @@ private static Resource doBuildResource() {
     if (javaHome != null) {
       StringBuilder executablePath = new StringBuilder(javaHome);
       executablePath
-          .append(File.pathSeparatorChar)
+          .append(File.separatorChar)
           .append("bin")
-          .append(File.pathSeparatorChar)
+          .append(File.separatorChar)
           .append("java");
       if (osName != null && osName.toLowerCase().startsWith("windows")) {
         executablePath.append(".exe");