diff --git a/bh.kicad_sym b/bh.kicad_sym
index 8c4858e..39bbb51 100755
--- a/bh.kicad_sym
+++ b/bh.kicad_sym
@@ -19620,7 +19620,7 @@
     (property "Populate" "" (at 0 0 0)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Sim.Library" "common/spice/ti/SN74AHCT1G04.cir" (at 0 0 0)
+    (property "Sim.Library" "common/spice/ti/SN74AHCT1G04.lib" (at 0 0 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Sim.Name" "SN74AHCT1G04" (at 0 0 0)
@@ -19764,7 +19764,7 @@
     (property "Populate" "" (at 0 0 0)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Sim.Library" "common/spice/ti/SN74AHCT1G08.cir" (at 0 0 0)
+    (property "Sim.Library" "common/spice/ti/SN74AHCT1G08.lib" (at 0 0 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Sim.Name" "SN74AHCT1G08" (at 0 0 0)
diff --git a/spice/ti/README.md b/spice/ti/README.md
new file mode 100644
index 0000000..587c214
--- /dev/null
+++ b/spice/ti/README.md
@@ -0,0 +1 @@
+`.cir` files must be renamed to `.lib` for kicad/pspice to work
\ No newline at end of file
diff --git a/spice/ti/SN74AHCT1G04.cir b/spice/ti/SN74AHCT1G04.lib
similarity index 100%
rename from spice/ti/SN74AHCT1G04.cir
rename to spice/ti/SN74AHCT1G04.lib
diff --git a/spice/ti/SN74AHCT1G08.cir b/spice/ti/SN74AHCT1G08.lib
similarity index 100%
rename from spice/ti/SN74AHCT1G08.cir
rename to spice/ti/SN74AHCT1G08.lib