--- a/wfview.pro
+++ b/wfview.pro
@@ -17,11 +17,11 @@ QMAKE_CXXFLAGS += -faligned-new
 
 } else {
 # For Release builds only:
-linux:QMAKE_CXXFLAGS += -s
+linux:QMAKE_CXXFLAGS += -O2 -g
 QMAKE_CXXFLAGS += -fvisibility=hidden
 QMAKE_CXXFLAGS += -fvisibility-inlines-hidden
 QMAKE_CXXFLAGS += -faligned-new
-linux:QMAKE_LFLAGS += -O2 -s
+linux:QMAKE_LFLAGS += -O2 -g
 }
 
 # The following define makes your compiler emit warnings if you use
