diff --git a/Makefile b/Makefile
index ce5531c..4624c3c 100644
--- a/Makefile
+++ b/Makefile
@@ -122,6 +122,8 @@ SRC_DIR=$(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
 vpath %.cpp $(SRC_DIR)
 
 PKG_CONFIG = pkg-config
+$(call ensure_binary,$(PKG_CONFIG))
+
 override CFLAGS += -std=c++11 -Wall -pedantic -O2 -g
 
 GCC_4_2_OR_HIGHER := $(shell expr `$(CXX) -dumpversion | sed 's/\.//g'` \>= 420)