diff --git a/utils/deploy_tool/main.cpp b/utils/deploy_tool/main.cpp
index ce41019c..f20ad19a 100644
--- a/utils/deploy_tool/main.cpp
+++ b/utils/deploy_tool/main.cpp
@@ -132,7 +132,7 @@ bool fake = false, is_ldd = true, is_deps = false, need_qt = false, make_qt_form
 PIString ldd, readelf, objdump, otool, dpkg, nametool, strip, out_dir, qt_dir, out_plugins_dir, dpkg_workdir;
 PIString qt_pref, qt_suff;
 PIStringList styles, lib_dirs, add_libs, platforms, sqldrivers, input_files, plugin_libs, qt_add_libs;
-PISet<PIString> all_libs, miss_libs, all_deps, frameworks, framework_libs, miss_frameworks, qt_plugins, ignore_libs;
+PISet<PIString> all_libs, miss_libs, all_deps, frameworks, framework_libs, miss_frameworks, qt_plugins, ignore_libs, qt_libs;
 PIMap<PIString, PIStringList> qt_filters;
 
 
@@ -183,17 +183,18 @@ PIString execute(const PIString & cmd) {
 
 
 void checkQtLib(PIString lib) {
-	PIString pref, suff;
-	if (lib.startsWith("lib")) {pref += "lib"; lib.cutLeft(3);}
-	if (lib.startsWith("qt5")) {pref += "Qt5"; lib.cutLeft(3);}
-	if (lib.startsWith("qt" )) {pref += "Qt" ; lib.cutLeft(2);}
-	if (lib.find('.') >= 0) {suff = lib.right(lib.size_s() - lib.find('.')); lib = lib.left(lib.find('.'));}
+	PIString base = lib, pref, suff;
+	if (base.startsWith("lib")) {pref += "lib"; base.cutLeft(3);}
+	if (base.startsWith("qt5")) {pref += "Qt5"; base.cutLeft(3);}
+	if (base.startsWith("qt" )) {pref += "Qt" ; base.cutLeft(2);}
+	if (base.find('.') >= 0) {suff = base.right(base.size_s() - base.find('.')); base = base.left(base.find('.'));}
 	for (int i = 0; ; ++i) {
 		if (qt_deps[i].lib.isEmpty()) break;
-		if (qt_deps[i].lib == lib) {
+		if (qt_deps[i].lib == base) {
 			qt_plugins << qt_deps[i].plugins;
 			//piCout << "add qt plugins" << qt_deps[i].plugins << "now" << qt_plugins;
 			need_qt = true;
+			qt_libs << lib;
 			if (make_qt_format) {
 				make_qt_format = false;
 				qt_pref = pref;
@@ -658,16 +659,32 @@ int main(int argc, char * argv[]) {
 		if (!all_libs[alib])
 			all_libs << alib;
 	}
-	if (need_qt && !is_deps)
-		procQt();
+	if (need_qt) {
+		bool need_qt_plugins = true;
+		if (is_deps) { // if Qt in system, then no plugins copy
+			PIVector<PIString> qlibs = qt_libs.toVector();
+			piCout << "check for installed Qt" << qlibs;
+			piForeach (PIString l, qlibs) {
+				l = findLib(l);
+				if (l.isEmpty()) continue;
+				if (procDpkg(l)) {
+					piCout << "system Qt found!";
+					need_qt_plugins = false;
+					break;
+				}
+			}
+		}
+		if (need_qt_plugins)
+			procQt();
+	}
 
 #ifdef WINDOWS
 	out_dir.replaceAll("/", "\\");
 #endif
 	PIVector<PIString> clibs = all_libs.toVector();
 	piForeach (PIString l, clibs) {
-	PIFile::FileInfo fi;
-	fi.path = l;
+		PIFile::FileInfo fi;
+		fi.path = l;
 #ifdef WINDOWS
 		l.replaceAll("/", "\\");
 #endif