diff --git a/dcop/dcopidl/scanner.cc b/dcop/dcopidl/scanner.cc
index 09a561ca8..3c6f99daa 100644
--- a/dcop/dcopidl/scanner.cc
+++ b/dcop/dcopidl/scanner.cc
@@ -947,8 +947,8 @@ extern int idl_line_no;
 int comment_mode;
 int function_mode = 0;
 
-#include <qstring.h>
-#include <qregexp.h>
+#include <tqstring.h>
+#include <tqregexp.h>
 
 static long ascii_to_longlong( long base, const char *s )
 {
diff --git a/dcop/dcopidl/scanner.ll b/dcop/dcopidl/scanner.ll
index d9f870512..61f9e5ca6 100644
--- a/dcop/dcopidl/scanner.ll
+++ b/dcop/dcopidl/scanner.ll
@@ -36,8 +36,8 @@ extern int idl_line_no;
 int comment_mode;
 int function_mode = 0;
 
-#include <qstring.h>
-#include <qregexp.h>
+#include <tqstring.h>
+#include <tqregexp.h>
 
 static long ascii_to_longlong( long base, const char *s )
 {
diff --git a/dcop/dcopidl/yacc.cc b/dcop/dcopidl/yacc.cc
index 85794118a..446fc7b49 100644
--- a/dcop/dcopidl/yacc.cc
+++ b/dcop/dcopidl/yacc.cc
@@ -106,7 +106,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <stdio.h>
 #include <assert.h>
 
-#include <qstring.h>
+#include <tqstring.h>
 
 #define AMP_ENTITY "&amp;"
 #define YYERROR_VERBOSE
diff --git a/dcop/dcopidl/yacc.yy b/dcop/dcopidl/yacc.yy
index ca22c65e1..ed38f320f 100644
--- a/dcop/dcopidl/yacc.yy
+++ b/dcop/dcopidl/yacc.yy
@@ -35,7 +35,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <stdio.h>
 #include <assert.h>
 
-#include <qstring.h>
+#include <tqstring.h>
 
 #define AMP_ENTITY "&amp;"
 #define YYERROR_VERBOSE