diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile
index 735a510230c3..45751648aacd 100644
--- a/tools/thermal/tmon/Makefile
+++ b/tools/thermal/tmon/Makefile
@@ -10,7 +10,7 @@ CFLAGS+= -O1 ${WARNFLAGS}
 # Add "-fstack-protector" only if toolchain supports it.
 CFLAGS+= $(call cc-option,-fstack-protector)
 CC?= $(CROSS_COMPILE)gcc
-PKG_CONFIG?= pkg-config
+PKG_CONFIG?= $(CROSS_COMPILE)pkg-config
 
 CFLAGS+=-D VERSION=\"$(VERSION)\"
 LDFLAGS+=