diff --git a/src/dlangide/builders/builder.d b/src/dlangide/builders/builder.d
index 6f07359..b4880c5 100644
--- a/src/dlangide/builders/builder.d
+++ b/src/dlangide/builders/builder.d
@@ -16,6 +16,7 @@ class Builder : BackgroundOperationWatcher {
     protected ExternalProcess _extprocess;
     protected OutputPanel _log;
     protected ProtectedTextStorage _box;
+    protected dstring _projectConfig;
     protected BuildConfiguration _buildConfig;
     protected BuildOperation _buildOp;
     protected bool _verbose;
@@ -23,8 +24,9 @@ class Builder : BackgroundOperationWatcher {
     @property Project project() { return _project; }
     @property void project(Project p) { _project = p; }
 
-    this(AppFrame frame, Project project, OutputPanel log, BuildConfiguration buildConfig, BuildOperation buildOp, bool verbose) {
+    this(AppFrame frame, Project project, OutputPanel log, dstring projectConfig, BuildConfiguration buildConfig, BuildOperation buildOp, bool verbose) {
         super(frame);
+        _projectConfig = projectConfig;
         _buildConfig = buildConfig;
         _buildOp = buildOp;
         _verbose = verbose;
@@ -83,6 +85,10 @@ class Builder : BackgroundOperationWatcher {
                 }
             }
 
+            if(_projectConfig != DEFAULT_PROJECT_CONFIGURATION) {
+                params ~= "--config=".dup ~ cast(string)(_projectConfig);
+            }
+            
             if (_verbose)
                 params ~= "-v".dup;
 
diff --git a/src/dlangide/ui/frame.d b/src/dlangide/ui/frame.d
index 357ef3b..7dcc9c0 100644
--- a/src/dlangide/ui/frame.d
+++ b/src/dlangide/ui/frame.d
@@ -697,7 +697,7 @@ class IDEFrame : AppFrame {
             _logPanel.logLine("No project is opened");
             return;
         }
-        Builder op = new Builder(this, currentWorkspace.startupProject, _logPanel, currentWorkspace.buildConfiguration, buildOp, false);
+        Builder op = new Builder(this, currentWorkspace.startupProject, _logPanel, currentWorkspace.projectConfiguration, currentWorkspace.buildConfiguration, buildOp, false);
         setBackgroundOperation(op);
     }