diff --git a/fuzzers/007-timing/Makefile b/fuzzers/007-timing/Makefile
index 9d0225c8..c164609e 100644
--- a/fuzzers/007-timing/Makefile
+++ b/fuzzers/007-timing/Makefile
@@ -3,7 +3,6 @@ SLICEM_SDFS = bel/build/CLBLL_L.sdf bel/build/CLBLL_R.sdf bel/build/CLBLM_L.sdf
 
 run: all
 all: pushdb
-	touch run.ok
 
 clean:
 	cd bel && $(MAKE) clean
diff --git a/fuzzers/007-timing/bel/Makefile b/fuzzers/007-timing/bel/Makefile
index b0cf9ff7..7267b8d6 100644
--- a/fuzzers/007-timing/bel/Makefile
+++ b/fuzzers/007-timing/bel/Makefile
@@ -3,10 +3,10 @@ all: build/sdf.ok
 clean:
 	rm -rf build
 
-build/bel_timings.txt:
+build/run.ok:
 	bash runme.sh
 
-build/fixup_timings: build/bel_timings.txt
+build/fixup_timings: build/run.ok
 	python3 fixup_timings_txt.py --txtin build/bel_timings.txt --txtout build/bel_timings.txt --site RAMBFIFO36E1 --slice BRAM_L --type timings
 	python3 fixup_timings_txt.py --txtin build/bel_timings.txt --txtout build/bel_timings.txt --site RAMBFIFO36E1 --slice BRAM_R --type timings
 	python3 fixup_timings_txt.py --txtin build/bel_pins.txt --txtout build/bel_pins.txt --site RAMBFIFO36E1 --slice BRAM_L --type pins
diff --git a/fuzzers/007-timing/routing-bels/Makefile b/fuzzers/007-timing/routing-bels/Makefile
index 0ed66695..ed041a1a 100644
--- a/fuzzers/007-timing/routing-bels/Makefile
+++ b/fuzzers/007-timing/routing-bels/Makefile
@@ -3,13 +3,13 @@ all: build/slicel.sdf build/slicem.sdf
 clean:
 	rm -rf build
 
-build/slicel.sdf: build/slicel.txt
+build/slicel.sdf: build/run.ok
 	python3 tim2sdf.py --timings build/slicel.txt --site SLICEL --sdf build/slicel.sdf
 
-build/slicem.sdf: build/slicem.txt
+build/slicem.sdf: build/run.ok
 	python3 tim2sdf.py --timings build/slicem.txt --site SLICEM --sdf build/slicem.sdf
 
-build/slicel.txt build/slicem.txt:
+build/run.ok:
 	bash runme.sh
 
 cleandb: