diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index 8e8aa7e..0b54218 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -231,7 +231,8 @@ amd64/linux32/linux32_dummy.c	optional	compat_linux32
 amd64/linux32/linux32_locore.s	optional	compat_linux32		\
 	dependency 	"linux32_assym.h"
 amd64/linux32/linux32_machdep.c	optional	compat_linux32
-amd64/linux32/linux32_support.s	optional	compat_linux32
+amd64/linux32/linux32_support.s	optional	compat_linux32		\
+	dependency 	"linux32_assym.h"
 amd64/linux32/linux32_sysent.c	optional	compat_linux32
 amd64/linux32/linux32_sysvec.c	optional	compat_linux32
 compat/linux/linux_emul.c	optional	compat_linux32
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index dd8e349..612cbe2 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -345,7 +345,8 @@ i386/linux/linux_locore.s	optional compat_linux		\
 	dependency 	"linux_assym.h"
 i386/linux/linux_machdep.c	optional compat_linux
 i386/linux/linux_ptrace.c	optional compat_linux
-i386/linux/linux_support.s	optional compat_linux
+i386/linux/linux_support.s	optional compat_linux		\
+	dependency 	"linux_assym.h"
 i386/linux/linux_sysent.c	optional compat_linux
 i386/linux/linux_sysvec.c	optional compat_linux
 i386/pci/pci_bus.c		optional pci
diff --git a/sys/conf/files.pc98 b/sys/conf/files.pc98
index f3dd5ae..ec52eb2 100644
--- a/sys/conf/files.pc98
+++ b/sys/conf/files.pc98
@@ -221,7 +221,8 @@ i386/linux/linux_locore.s	optional compat_linux		\
 	dependency 	"linux_assym.h"
 i386/linux/linux_machdep.c	optional compat_linux
 i386/linux/linux_ptrace.c	optional compat_linux
-i386/linux/linux_support.s	optional compat_linux
+i386/linux/linux_support.s	optional compat_linux		\
+	dependency 	"linux_assym.h"
 i386/linux/linux_sysent.c	optional compat_linux
 i386/linux/linux_sysvec.c	optional compat_linux
 i386/pci/pci_bus.c		optional pci
diff --git a/sys/modules/linux/Makefile b/sys/modules/linux/Makefile
index ea579de..f97c34e 100644
--- a/sys/modules/linux/Makefile
+++ b/sys/modules/linux/Makefile
@@ -45,7 +45,7 @@ linux${SFX}_locore.o: linux${SFX}_locore.s linux${SFX}_assym.h
 	${CC} -c -x assembler-with-cpp -DLOCORE ${CFLAGS} \
 	    ${.IMPSRC} -o ${.TARGET}
 
-linux${SFX}_support.o: linux${SFX}_support.s assym.s
+linux${SFX}_support.o: linux${SFX}_support.s assym.s linux${SFX}_assym.h
 	${CC} -c -x assembler-with-cpp -DLOCORE ${CFLAGS} \
 	    ${.IMPSRC} -o ${.TARGET}