diff --git a/tools/acrn-manager/Makefile b/tools/acrn-manager/Makefile
index c5fe3adb1..43878b554 100644
--- a/tools/acrn-manager/Makefile
+++ b/tools/acrn-manager/Makefile
@@ -2,7 +2,7 @@
 OUT_DIR ?= .
 
 all: acrnctl.c
-	gcc -o $(OUT_DIR)/acrnctl acrnctl.c -I../../devicemodel/include -Wall -g
+	$(CC) -o $(OUT_DIR)/acrnctl acrnctl.c -I../../devicemodel/include -Wall -g
 
 clean:
 	rm -f $(OUT_DIR)/acrnctl
diff --git a/tools/acrnlog/Makefile b/tools/acrnlog/Makefile
index ef088c76a..59aa083c9 100644
--- a/tools/acrnlog/Makefile
+++ b/tools/acrnlog/Makefile
@@ -2,7 +2,7 @@
 OUT_DIR ?= .
 
 all:
-	gcc -g acrnlog.c -o $(OUT_DIR)/acrnlog -lpthread
+	$(CC) -g acrnlog.c -o $(OUT_DIR)/acrnlog -lpthread
 
 clean:
 	rm $(OUT_DIR)/acrnlog
diff --git a/tools/acrntrace/Makefile b/tools/acrntrace/Makefile
index 1c02cd4f9..5563a21c6 100644
--- a/tools/acrntrace/Makefile
+++ b/tools/acrntrace/Makefile
@@ -2,7 +2,7 @@
 OUT_DIR ?= .
 
 all:
-	gcc -o $(OUT_DIR)/acrntrace acrntrace.c sbuf.c -I. -lpthread
+	$(CC) -o $(OUT_DIR)/acrntrace acrntrace.c sbuf.c -I. -lpthread
 
 clean:
 	rm $(OUT_DIR)/acrntrace