diff --git a/Source/Engine/Platform/Base/StringUtilsBase.cpp b/Source/Engine/Platform/Base/StringUtilsBase.cpp
index 4b2708b4c..7e245b4b3 100644
--- a/Source/Engine/Platform/Base/StringUtilsBase.cpp
+++ b/Source/Engine/Platform/Base/StringUtilsBase.cpp
@@ -261,7 +261,7 @@ void StringUtils::PathRemoveRelativeParts(String& path)
     path.Clear();
     for (auto& e : stack)
         path /= e;
-    if (isRooted)
+    if (isRooted && path[0] != '/')
         path.Insert(0, TEXT("/"));
 }
 
diff --git a/Source/Engine/Utilities/StringUtils.cs b/Source/Engine/Utilities/StringUtils.cs
index 057dd9b86..cb04afbfc 100644
--- a/Source/Engine/Utilities/StringUtils.cs
+++ b/Source/Engine/Utilities/StringUtils.cs
@@ -227,7 +227,7 @@ namespace FlaxEngine
 
             bool isRooted = path.StartsWith("/");
             string result = string.Join(Path.DirectorySeparatorChar.ToString(), stack.Reverse());
-            if (isRooted)
+            if (isRooted && result[0] != '/')
                 result = result.Insert(0, "/");
             return result;
         }
diff --git a/Source/Tools/Flax.Build/Utilities/Utilities.cs b/Source/Tools/Flax.Build/Utilities/Utilities.cs
index 2fe7b0fc4..98e1ac529 100644
--- a/Source/Tools/Flax.Build/Utilities/Utilities.cs
+++ b/Source/Tools/Flax.Build/Utilities/Utilities.cs
@@ -517,7 +517,7 @@ namespace Flax.Build
 
             bool isRooted = path.StartsWith("/");
             string result = string.Join(Path.DirectorySeparatorChar.ToString(), stack.Reverse());
-            if (isRooted)
+            if (isRooted && result[0] != '/')
                 result = result.Insert(0, "/");
             return result;
         }