diff --git a/src/Makefile b/src/Makefile
index 155146d..7f61dba 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -4,15 +4,17 @@
 
 obj-$(CONFIG_TOA) += toa.o
 
+kerver=$(shell rpm -q kernel-devel --queryformat=%{VERSION}-%{RELEASE}.%{ARCH})
+
 default:
-	make CONFIG_TOA=m  -C /lib/modules/`uname -r`/build M=`pwd` modules
+	make CONFIG_TOA=m  -C /lib/modules/${kerver}/build M=`pwd` modules
 
 debug:
-	make CONFIG_TOA=m  -C /lib/modules/`uname -r`/build M=`pwd` modules EXTRA_CFLAGS="-DTOA_DBG_MSG"
+	make CONFIG_TOA=m  -C /lib/modules/${kerver}/build M=`pwd` modules EXTRA_CFLAGS="-DTOA_DBG_MSG"
 clean:
 	rm -f .*.cmd *.o *.ko *.mod.c modules.order Module.symvers
 	rm -rf .tmp_versions
 install:
-	test -d "$(DESTDIR)/lib/modules/`uname -r`/extra/net/toa" \
-		|| mkdir -p "$(DESTDIR)/lib/modules/`uname -r`/extra/net/toa"
-	cp *.ko  "$(DESTDIR)/lib/modules/`uname -r`/extra/net/toa"
+	test -d "$(DESTDIR)/lib/modules/${kerver}/extra/net/toa" \
+		|| mkdir -p "$(DESTDIR)/lib/modules/${kerver}/extra/net/toa"
+	cp *.ko  "$(DESTDIR)/lib/modules/${kerver}/extra/net/toa"