diff --git a/.gitignore b/.gitignore
index 1f6d9dc2..672f24ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.moc.o
 *.moc.o
 *.moc.cpp
+ui_*.h
 *.o
 Makefile.in
 Makefile
diff --git a/configure.ac b/configure.ac
index 5279b321..e59f7389 100644
--- a/configure.ac
+++ b/configure.ac
@@ -143,6 +143,14 @@ if test "$MOC" = ":"; then
   development package of Qt.])
 fi
 
+if test "$UIC" = ":"; then
+  AC_MSG_WARN([
+  The $PACKAGE package needs the 'Qt User Interface Compiler' to compile properly.
+  Though Qt itself may be properly installed including headers and libraries
+  the 'uic' program is missing.  Possibly you need to install the full
+  development package of Qt.])
+fi
+
 dnl Check for X11
 if test x$LINUX == "xyes"; then
   AC_PATH_XTRA
diff --git a/qucs/dialogs/Makefile.am b/qucs/dialogs/Makefile.am
index 22809a21..d3558451 100644
--- a/qucs/dialogs/Makefile.am
+++ b/qucs/dialogs/Makefile.am
@@ -32,6 +32,10 @@ MOCHEADERS = settingsdialog.h simmessage.h qucssettingsdialog.h      \
 
 MOCFILES = $(MOCHEADERS:.h=.moc.cpp)
 
+UICFILES = ui_searchdialog.h
+
+BUILT_SOURCES = $(UICFILES)
+
 libdialogs_a_SOURCES = settingsdialog.cpp newprojdialog.cpp \
      simmessage.cpp qucssettingsdialog.cpp labeldialog.cpp changedialog.cpp \
      matchdialog.cpp sweepdialog.cpp digisettingsdialog.cpp searchdialog.cpp \
@@ -41,7 +45,7 @@ libdialogs_a_SOURCES = settingsdialog.cpp newprojdialog.cpp \
 
 nodist_libdialogs_a_SOURCES = $(MOCFILES)
 
-noinst_HEADERS = $(MOCHEADERS)
+noinst_HEADERS = $(MOCHEADERS) $(UIHEADERS)
 
 AM_CPPFLAGS = $(X11_INCLUDES) $(QT_INCLUDES) -I$(top_srcdir)/qucs
 
@@ -50,6 +54,9 @@ SUFFIXES = .moc.cpp
 .h.moc.cpp:
 	$(MOC) -o $@ $<
 
+ui_searchdialog.h: searchdialog.ui
+	$(UIC) -o $@ $<
+
 CLEANFILES = *~
 MAINTAINERCLEANFILES = Makefile.in *.moc.cpp
-DISTCLEANFILES = *.moc.cpp
+DISTCLEANFILES = *.moc.cpp ui_*.h