diff --git a/build.gradle.kts b/build.gradle.kts
index d0bc3b838..c52c082a2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -34,7 +34,7 @@ ext {
     date = git.head().dateTime.format(DateTimeFormatter.ofPattern("yy.MM.dd"))
     revision = "-${git.head().abbreviatedId}"
     buildNumber = if (project.hasProperty("buildnumber")) {
-        snapshot + "+" + project.properties["buildnumber"] as String
+        snapshot + "-" + project.properties["buildnumber"] as String
     } else {
         project.properties["snapshot"] as String
     }
diff --git a/worldedit-core/src/main/java/com/fastasyncworldedit/core/FaweVersion.java b/worldedit-core/src/main/java/com/fastasyncworldedit/core/FaweVersion.java
index 5fb78e6bb..2298d491b 100644
--- a/worldedit-core/src/main/java/com/fastasyncworldedit/core/FaweVersion.java
+++ b/worldedit-core/src/main/java/com/fastasyncworldedit/core/FaweVersion.java
@@ -7,7 +7,6 @@ import java.util.Locale;
 /**
  * An internal FAWE class not meant for public use.
  **/
-//TODO 18 update to semver
 public class FaweVersion {
 
     public final int year;
@@ -37,7 +36,7 @@ public class FaweVersion {
         }
         this.semver = ver;
         this.snapshot = split.length > 1 && split[1].toLowerCase(Locale.ROOT).contains("snapshot");
-        this.build = version.contains("+") ? Integer.parseInt(version.substring(version.indexOf('+') + 1)) : 0;
+        this.build = version.contains("-") ? Integer.parseInt(version.substring(version.indexOf('-') + 10)) : 0;
         this.hash = Integer.parseInt(commit.substring(commit.indexOf('=') + 1), 16);
         String[] split2 = date.substring(date.indexOf('=') + 1).split("\\.");
         this.year = Integer.parseInt(split2[0]);
@@ -60,7 +59,7 @@ public class FaweVersion {
             return "FastAsyncWorldEdit-NoVer-SNAPSHOT";
         } else {
             String snapshot = this.snapshot ? "-SNAPSHOT" : "";
-            String build = this.build > 0 ? "+" + this.build : "";
+            String build = this.build > 0 ? "-" + this.build : "";
             return "FastAsyncWorldEdit-" + StringMan.join(semver, ".") + snapshot + build;
         }
     }