diff --git a/techlibs/ice40/Makefile.inc b/techlibs/ice40/Makefile.inc
index d7fec5685..ed495519a 100644
--- a/techlibs/ice40/Makefile.inc
+++ b/techlibs/ice40/Makefile.inc
@@ -12,7 +12,7 @@ EXTRA_OBJS += techlibs/ice40/brams_init.mk
 
 techlibs/ice40/brams_init.mk: techlibs/ice40/brams_init.py
 	$(Q) mkdir -p techlibs/ice40
-	$(P) cd techlibs/ice40 && python $<
+	$(P) python $<
 	$(Q) touch techlibs/ice40/brams_init.mk
 
 techlibs/ice40/brams_init1.vh: techlibs/ice40/brams_init.mk
diff --git a/techlibs/ice40/brams_init.py b/techlibs/ice40/brams_init.py
index b99a2f3ca..93eb9846b 100644
--- a/techlibs/ice40/brams_init.py
+++ b/techlibs/ice40/brams_init.py
@@ -11,7 +11,7 @@ def write_init_vh(filename, initbits):
                 print("  %s%s" % (", ".join(["INIT[%4d]" % initbits[i*256 + 255 - k*8 - l] for l in range(8)]), "," if k != 31 else ""), file=f)
             print("};", file=f);
 
-write_init_vh("brams_init1.vh", [i//2 + 2048*(i%2) for i in range(4096)])
-write_init_vh("brams_init2.vh", [i//4 + 1024*(i%4) for i in range(4096)])
-write_init_vh("brams_init3.vh", [i//8 +  512*(i%8) for i in range(4096)])
+write_init_vh("techlibs/ice40/brams_init1.vh", [i//2 + 2048*(i%2) for i in range(4096)])
+write_init_vh("techlibs/ice40/brams_init2.vh", [i//4 + 1024*(i%4) for i in range(4096)])
+write_init_vh("techlibs/ice40/brams_init3.vh", [i//8 +  512*(i%8) for i in range(4096)])
 
diff --git a/techlibs/xilinx/Makefile.inc b/techlibs/xilinx/Makefile.inc
index 29d3fe9d7..cca41f917 100644
--- a/techlibs/xilinx/Makefile.inc
+++ b/techlibs/xilinx/Makefile.inc
@@ -11,7 +11,7 @@ EXTRA_OBJS += techlibs/xilinx/brams_init.mk
 
 techlibs/xilinx/brams_init.mk: techlibs/xilinx/brams_init.py
 	$(Q) mkdir -p techlibs/xilinx
-	$(P) cd techlibs/xilinx && python $<
+	$(P) python $<
 	$(Q) touch $@
 
 techlibs/xilinx/brams_init_36.vh: techlibs/xilinx/brams_init.mk
diff --git a/techlibs/xilinx/brams_init.py b/techlibs/xilinx/brams_init.py
index be61d3f6a..eac829ddf 100644
--- a/techlibs/xilinx/brams_init.py
+++ b/techlibs/xilinx/brams_init.py
@@ -3,7 +3,7 @@
 from __future__ import division
 from __future__ import print_function
 
-with open("brams_init_18.vh", "w") as f:
+with open("techlibs/xilinx/brams_init_18.vh", "w") as f:
     for i in range(8):
         init_snippets = ["INIT[%3d*9+8]" % (k+256*i,) for k in range(255, -1, -1)]
         for k in range(4, 256, 4):
@@ -15,7 +15,7 @@ with open("brams_init_18.vh", "w") as f:
             init_snippets[k] = "\n          " + init_snippets[k]
         print(".INIT_%02X({%s})," % (i, ", ".join(init_snippets)), file=f)
 
-with open("brams_init_36.vh", "w") as f:
+with open("techlibs/xilinx/brams_init_36.vh", "w") as f:
     for i in range(16):
         init_snippets = ["INIT[%3d*9+8]" % (k+256*i,) for k in range(255, -1, -1)]
         for k in range(4, 256, 4):
@@ -27,11 +27,11 @@ with open("brams_init_36.vh", "w") as f:
             init_snippets[k] = "\n          " + init_snippets[k]
         print(".INIT_%02X({%s})," % (i, ", ".join(init_snippets)), file=f)
 
-with open("brams_init_16.vh", "w") as f:
+with open("techlibs/xilinx/brams_init_16.vh", "w") as f:
     for i in range(64):
         print(".INIT_%02X(INIT[%3d*256 +: 256])," % (i, i), file=f)
 
-with open("brams_init_32.vh", "w") as f:
+with open("techlibs/xilinx/brams_init_32.vh", "w") as f:
     for i in range(128):
         print(".INIT_%02X(INIT[%3d*256 +: 256])," % (i, i), file=f)