diff --git a/kbarcode/pixmapbarcode.cpp b/kbarcode/pixmapbarcode.cpp
index 02cb19b..4768b3e 100644
--- a/kbarcode/pixmapbarcode.cpp
+++ b/kbarcode/pixmapbarcode.cpp
@@ -178,7 +178,7 @@ bool PixmapBarcode::createPixmap( TQPixmap* target, int resx, int resy )
         cmd += input->name();
 	cmd += " -sNOPAUSE -q - -c showpage quit";
 	
-        tqDebug("cmd: " + cmd );
+        tqDebug("cmd: %s", cmd.ascii() );
 	gs_pipe = popen( cmd.latin1(), "w" );
         if( !gs_pipe )
 	{
diff --git a/kbarcode/tbarcode2.cpp b/kbarcode/tbarcode2.cpp
index 8490f7c..95cc64f 100644
--- a/kbarcode/tbarcode2.cpp
+++ b/kbarcode/tbarcode2.cpp
@@ -122,7 +122,7 @@ bool TBarcode2::createPostscript( char** postscript, long* postscript_size )
                        tbarcode->height(),
                        tbarcode->checksum() );
 
-    tqDebug( "Cmd = " + cmd );
+    tqDebug( "Cmd = %s", cmd.ascii() );
     if( !readFromPipe( cmd.latin1(), postscript, postscript_size ) )
         return false;