diff --git a/waflib/Tools/qt5.py b/waflib/Tools/qt5.py
index cff20281..82c83e18 100644
--- a/waflib/Tools/qt5.py
+++ b/waflib/Tools/qt5.py
@@ -566,7 +566,7 @@ def find_qt5_binaries(self):
 	# at the end, try to find qmake in the paths given
 	# keep the one with the highest version
 	cand = None
-	prev_ver = ['5', '0', '0']
+	prev_ver = ['0', '0', '0']
 	for qmk in ('qmake-qt5', 'qmake5', 'qmake'):
 		try:
 			qmake = self.find_program(qmk, path_list=paths)
@@ -580,7 +580,7 @@ def find_qt5_binaries(self):
 			else:
 				if version:
 					new_ver = version.split('.')
-					if new_ver > prev_ver:
+					if new_ver[0] == '5' and new_ver > prev_ver:
 						cand = qmake
 						prev_ver = new_ver
 
@@ -783,7 +783,7 @@ def set_qt5_libs_to_check(self):
 			pat = self.env.cxxstlib_PATTERN
 		if Utils.unversioned_sys_platform() == 'darwin':
 			pat = r"%s\.framework"
-		re_qt = re.compile(pat%'Qt5?(?P<name>.*)'+'$')
+		re_qt = re.compile(pat % 'Qt5?(?P<name>\\D+)' + '$')
 		for x in dirlst:
 			m = re_qt.match(x)
 			if m: