diff --git a/.gitignore b/.gitignore
index f36ddd284d..ef27553a2d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -160,7 +160,8 @@ tools/flask/utils/flask-set-bool
 tools/flask/utils/flask-label-pci
 tools/fuzz/libelf/afl-libelf-fuzzer
 tools/fuzz/x86_instruction_emulator/asm
-tools/fuzz/x86_instruction_emulator/x86_emulate*
+tools/fuzz/x86_instruction_emulator/x86_emulate
+tools/fuzz/x86_instruction_emulator/x86-emulate.[ch]
 tools/fuzz/x86_instruction_emulator/afl-harness
 tools/helpers/_paths.h
 tools/helpers/init-xenstore-domain
diff --git a/tools/fuzz/x86_instruction_emulator/Makefile b/tools/fuzz/x86_instruction_emulator/Makefile
index a3f6b2c754..107bf62a21 100644
--- a/tools/fuzz/x86_instruction_emulator/Makefile
+++ b/tools/fuzz/x86_instruction_emulator/Makefile
@@ -18,22 +18,22 @@ asm:
 
 asm/%: asm ;
 
-x86_emulate.c x86_emulate.h: %:
+x86-emulate.c x86-emulate.h: %:
 	[ -L $* ] || ln -sf $(XEN_ROOT)/tools/tests/x86_emulator/$*
 
 CFLAGS += $(CFLAGS_xeninclude) -D__XEN_TOOLS__ -I.
 
 x86.h := asm/x86-vendors.h asm/x86-defns.h asm/msr-index.h
-x86_emulate.h := x86_emulate.h x86_emulate/x86_emulate.h $(x86.h)
+x86_emulate.h := x86-emulate.h x86_emulate/x86_emulate.h $(x86.h)
 
-x86_emulate.o: x86_emulate.c x86_emulate/x86_emulate.c $(x86_emulate.h)
+x86-emulate.o: x86-emulate.c x86_emulate/x86_emulate.c $(x86_emulate.h)
 
 fuzz-emul.o: $(x86_emulate.h)
 
-x86-insn-fuzzer.a: fuzz-emul.o x86_emulate.o
+x86-insn-fuzzer.a: fuzz-emul.o x86-emulate.o
 	$(AR) rc $@ $^
 
-afl-harness: afl-harness.o fuzz-emul.o x86_emulate.o
+afl-harness: afl-harness.o fuzz-emul.o x86-emulate.o
 	$(CC) $(CFLAGS) $^ -o $@
 
 # Common targets
@@ -42,7 +42,7 @@ all: x86-insn-fuzz-all
 
 .PHONY: distclean
 distclean: clean
-	rm -f x86_emulate x86_emulate.c x86_emulate.h asm
+	rm -f x86_emulate x86-emulate.c x86-emulate.h asm
 
 .PHONY: clean
 clean:
diff --git a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
index 5fb8586955..8998f21fe1 100644
--- a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
+++ b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
@@ -15,7 +15,7 @@
 #include <unistd.h>
 #include <xen/xen.h>
 
-#include "x86_emulate.h"
+#include "x86-emulate.h"
 
 #define MSR_INDEX_MAX 16
 
diff --git a/tools/tests/x86_emulator/Makefile b/tools/tests/x86_emulator/Makefile
index d7be77d98a..ed0fd9710e 100644
--- a/tools/tests/x86_emulator/Makefile
+++ b/tools/tests/x86_emulator/Makefile
@@ -77,7 +77,7 @@ $(addsuffix .h,$(TESTCASES)): %.h: %.c testcase.mk Makefile
 $(addsuffix .c,$(SIMD)) $(addsuffix -avx.c,$(filter sse%,$(SIMD))):
 	ln -sf simd.c $@
 
-$(TARGET): x86_emulate.o test_x86_emulator.o
+$(TARGET): x86-emulate.o test_x86_emulator.o
 	$(HOSTCC) $(HOSTCFLAGS) -o $@ $^
 
 .PHONY: clean
@@ -105,9 +105,9 @@ $(call cc-option-add,HOSTCFLAGS-x86_64,HOSTCC,-no-pie)
 HOSTCFLAGS += $(CFLAGS_xeninclude) -I. $(HOSTCFLAGS-$(XEN_COMPILE_ARCH))
 
 x86.h := asm/x86-vendors.h asm/x86-defns.h asm/msr-index.h
-x86_emulate.h := x86_emulate.h x86_emulate/x86_emulate.h $(x86.h)
+x86_emulate.h := x86-emulate.h x86_emulate/x86_emulate.h $(x86.h)
 
-x86_emulate.o: x86_emulate.c x86_emulate/x86_emulate.c $(x86_emulate.h)
+x86-emulate.o: x86-emulate.c x86_emulate/x86_emulate.c $(x86_emulate.h)
 	$(HOSTCC) $(HOSTCFLAGS) -D__XEN_TOOLS__ -c -g -o $@ $<
 
 test_x86_emulator.o: test_x86_emulator.c $(addsuffix .h,$(TESTCASES)) $(x86_emulate.h)
diff --git a/tools/tests/x86_emulator/test_x86_emulator.c b/tools/tests/x86_emulator/test_x86_emulator.c
index 2bb4b1e04b..7a8df419cd 100644
--- a/tools/tests/x86_emulator/test_x86_emulator.c
+++ b/tools/tests/x86_emulator/test_x86_emulator.c
@@ -3,7 +3,7 @@
 #include <stdio.h>
 #include <sys/mman.h>
 
-#include "x86_emulate.h"
+#include "x86-emulate.h"
 #include "blowfish.h"
 #include "sse.h"
 #include "sse2.h"
diff --git a/tools/tests/x86_emulator/x86_emulate.c b/tools/tests/x86_emulator/x86-emulate.c
similarity index 99%
rename from tools/tests/x86_emulator/x86_emulate.c
rename to tools/tests/x86_emulator/x86-emulate.c
index 79661d5c2b..975ddc7e53 100644
--- a/tools/tests/x86_emulator/x86_emulate.c
+++ b/tools/tests/x86_emulator/x86-emulate.c
@@ -1,4 +1,4 @@
-#include "x86_emulate.h"
+#include "x86-emulate.h"
 
 #include <sys/mman.h>
 
diff --git a/tools/tests/x86_emulator/x86_emulate.h b/tools/tests/x86_emulator/x86-emulate.h
similarity index 100%
rename from tools/tests/x86_emulator/x86_emulate.h
rename to tools/tests/x86_emulator/x86-emulate.h
