diff --git a/src/mk/localdefs.in b/src/mk/localdefs.in
index be11f716..755ae3f8 100644
--- a/src/mk/localdefs.in
+++ b/src/mk/localdefs.in
@@ -29,7 +29,7 @@ RECOLL_DATADIR = ${datadir}/recoll
 @NOPIC@PICFLAGS = $(SYSPICFLAGS)
 @NOTHREADS@LIBTHREADS = $(LIBSYSTHREADS)
 
-LOCALCXXFLAGS = -g -O2 -Wall -Wno-unused \
+LOCALCXXFLAGS = -Wall -Wno-unused \
 	      $(INCICONV) $(XAPIANCXXFLAGS) $(X_CFLAGS) \
 	      -DRECOLL_DATADIR=\"$(RECOLL_DATADIR)\" \
 	      -DLIBDIR=\"$(libdir)\" \