diff --git a/examples/burst-app/Makefile b/examples/burst-app/Makefile
index d441cb652b9c69d62f629ba159be47aeb755ac7b..0375cb36c918b60e0deb1daea1c27299a92cc3c6 100644
--- a/examples/burst-app/Makefile
+++ b/examples/burst-app/Makefile
@@ -48,14 +48,9 @@ LDLIBS = -lIPSec_MB
 SOURCES := main.c
 OBJECTS := $(SOURCES:%.c=%.o)
 
-ifeq ("$(shell test -e $(INSTPATH) && echo -n yes)","yes")
-# library installed
-CFLAGS +=
-else
 # library not installed
 CFLAGS += -I$(LIB_DIR)
 LDFLAGS += -L$(LIB_DIR)
-endif
 
 # targets come here
 all: $(APP)
diff --git a/perf/Makefile b/perf/Makefile
index abc138584f85f2a1ca63e06957169f2724a73fed..9aea0b7128a73286e90753b4669e797f0d5ad145 100644
--- a/perf/Makefile
+++ b/perf/Makefile
@@ -86,14 +86,9 @@ endif
 endif # aarch64
 LDLIBS = -lIPSec_MB
 
-ifeq ("$(shell test -e $(INSTPATH) && echo -n yes)","yes")
-# library installed
-CFLAGS +=
-else
 # library not installed
 CFLAGS += -I../lib
 LDFLAGS += -L$(LIB_DIR)
-endif
 
 DEBUG_OPT ?= -O0
 ifeq ($(DEBUG),y)
diff --git a/test/common/common.mk b/test/common/common.mk
index 311b7cc130ba2550fa179354e6b3a3af9da10b99..a6a32add323a487f8f6fc6cc358e2fae5d46d60f 100644
--- a/test/common/common.mk
+++ b/test/common/common.mk
@@ -102,15 +102,9 @@ endif # x86_64
 
 LDLIBS = -lIPSec_MB
 
-ifeq ("$(shell test -r $(INSTPATH) && echo -n yes)","yes")
-# library installed
-$(info INFO: Using system installed library version.)
-CFLAGS += -I../include/
-else
 # library not installed
 CFLAGS += -I../../lib -I../include/
 LDFLAGS += -L$(LIB_DIR)
-endif
 
 DEBUG_OPT ?= -O0
 ifeq ($(DEBUG),y)