diff --git a/tools/build.sh b/tools/build.sh
index 262ad3d..e0ffe0a 100644
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -4,7 +4,7 @@ set -v
 mkdir -p bin
 SRC=bin/stencils.c
 DEST=src/copapy/obj
-python tools/generate_stencils.py $SRC
+python3 tools/generate_stencils.py $SRC
 mkdir -p $DEST
 gcc --version
 #gcc -c $SRC -O0 -o $DEST/stencils_x86_64_O0.o
diff --git a/tools/inspect.sh b/tools/inspect.sh
index 9ea8a75..d3690fb 100644
--- a/tools/inspect.sh
+++ b/tools/inspect.sh
@@ -2,6 +2,6 @@
 
 source tools/build.sh
 objdump -d -x src/copapy/obj/stencils_x86_64_O3.o > bin/stencils_x86_64_O3.asm
-python tools/make_example.py
-python tools/extract_code.py "bin/test.copapy" "bin/test.copapy.bin"
+python3 tools/make_example.py
+python3 tools/extract_code.py "bin/test.copapy" "bin/test.copapy.bin"
 objdump -D -b binary -m i386:x86-64 --adjust-vma=0x1000 bin/test.copapy.bin > bin/test.copapy.asm