diff --git a/benchmarks/histogram/Makefile b/benchmarks/histogram/Makefile
index ef0e61c..d30838e 100644
--- a/benchmarks/histogram/Makefile
+++ b/benchmarks/histogram/Makefile
@@ -1,7 +1,7 @@
 ROOT    := ../..
 TARGETS := histogram
-LIBS    := -lpthread
-CFLAGS  := -g -O2
+LIBS     := -lpthread -Wl,--no-as-needed -ldl
+CFLAGS  := -g -O2 -gdwarf-3
 
 include $(ROOT)/benchmark.mk
 
diff --git a/libcoz/Makefile b/libcoz/Makefile
index 0a2bbf9..4647fd2 100644
--- a/libcoz/Makefile
+++ b/libcoz/Makefile
@@ -1,7 +1,7 @@
 ROOT 		 := ..
 TARGETS  := libcoz.so
 LIBS     := -ldl -lrt -lpthread $(shell pkg-config --libs libelf++ libdwarf++)
-CXXFLAGS := --std=c++0x -g -O2 -fPIC -I$(ROOT)/include -I. \
+CXXFLAGS := -gdwarf-3 --std=c++0x -g -O2 -fPIC -I$(ROOT)/include -I. \
             $(shell pkg-config --cflags libelf++ libdwarf++)
 
 include $(ROOT)/common.mk