diff --git a/Makefile.am b/Makefile.am
index 23dc2572ab..89af931ae4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -12,10 +12,10 @@ endif
 if CONFIG_KERNEL
 SUBDIRS += module
 
-extradir = /usr/src/spl-$(VERSION)
+extradir = @prefix@/src/spl-$(VERSION)
 extra_HEADERS = spl.release.in spl_config.h.in
 
-kerneldir = /usr/src/spl-$(VERSION)/$(LINUX_VERSION)
+kerneldir = @prefix@/src/spl-$(VERSION)/$(LINUX_VERSION)
 nodist_kernel_HEADERS = spl.release spl_config.h module/$(LINUX_SYMBOLS)
 endif
 
diff --git a/include/Makefile.am b/include/Makefile.am
index a7508fb34e..f9b812de38 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -15,6 +15,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include
+kerneldir = @prefix@/src/spl-$(VERSION)/include
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/fs/Makefile.am b/include/fs/Makefile.am
index 530172ddc8..e0da4b32ab 100644
--- a/include/fs/Makefile.am
+++ b/include/fs/Makefile.am
@@ -8,6 +8,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/fs
+kerneldir = @prefix@/src/spl-$(VERSION)/include/fs
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/linux/Makefile.am b/include/linux/Makefile.am
index 4221594973..1cca44a2bb 100644
--- a/include/linux/Makefile.am
+++ b/include/linux/Makefile.am
@@ -19,6 +19,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/linux
+kerneldir = @prefix@/src/spl-$(VERSION)/include/linux
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/rpc/Makefile.am b/include/rpc/Makefile.am
index 2f8aa29dde..cfc824685d 100644
--- a/include/rpc/Makefile.am
+++ b/include/rpc/Makefile.am
@@ -9,6 +9,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/rpc
+kerneldir = @prefix@/src/spl-$(VERSION)/include/rpc
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/sharefs/Makefile.am b/include/sharefs/Makefile.am
index d6175a5022..10e709325d 100644
--- a/include/sharefs/Makefile.am
+++ b/include/sharefs/Makefile.am
@@ -8,6 +8,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/sharefs
+kerneldir = @prefix@/src/spl-$(VERSION)/include/sharefs
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/sys/Makefile.am b/include/sys/Makefile.am
index 985c513193..2d21c57287 100644
--- a/include/sys/Makefile.am
+++ b/include/sys/Makefile.am
@@ -104,7 +104,7 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/sys
+kerneldir = @prefix@/src/spl-$(VERSION)/include/sys
 kernel_HEADERS = $(KERNEL_H)
 endif
 
diff --git a/include/sys/fm/Makefile.am b/include/sys/fm/Makefile.am
index 1c9cf84169..2821cbe333 100644
--- a/include/sys/fm/Makefile.am
+++ b/include/sys/fm/Makefile.am
@@ -9,6 +9,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/sys/fm
+kerneldir = @prefix@/src/spl-$(VERSION)/include/sys/fm
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/sys/fs/Makefile.am b/include/sys/fs/Makefile.am
index 27ae109884..581083e9c5 100644
--- a/include/sys/fs/Makefile.am
+++ b/include/sys/fs/Makefile.am
@@ -8,6 +8,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/sys/fs
+kerneldir = @prefix@/src/spl-$(VERSION)/include/sys/fs
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/sys/sysevent/Makefile.am b/include/sys/sysevent/Makefile.am
index bf395eb2d3..63d9af310f 100644
--- a/include/sys/sysevent/Makefile.am
+++ b/include/sys/sysevent/Makefile.am
@@ -8,6 +8,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/sys/sysevent
+kerneldir = @prefix@/src/spl-$(VERSION)/include/sys/sysevent
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/util/Makefile.am b/include/util/Makefile.am
index 5ac96e8cc7..b721b5099c 100644
--- a/include/util/Makefile.am
+++ b/include/util/Makefile.am
@@ -9,6 +9,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/util
+kerneldir = @prefix@/src/spl-$(VERSION)/include/util
 kernel_HEADERS = $(KERNEL_H)
 endif
diff --git a/include/vm/Makefile.am b/include/vm/Makefile.am
index 413a6e325b..7faab0aab7 100644
--- a/include/vm/Makefile.am
+++ b/include/vm/Makefile.am
@@ -10,6 +10,6 @@ USER_H =
 EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
 
 if CONFIG_KERNEL
-kerneldir = /usr/src/spl-$(VERSION)/include/vm
+kerneldir = @prefix@/src/spl-$(VERSION)/include/vm
 kernel_HEADERS = $(KERNEL_H)
 endif