diff --git a/lib/src/bool.gem b/lib/src/bool.gsc
similarity index 80%
rename from lib/src/bool.gem
rename to lib/src/bool.gsc
index e028294..682ad66 100644
--- a/lib/src/bool.gem
+++ b/lib/src/bool.gsc
@@ -1,5 +1,5 @@
 
-import "def.gem"
+import "def.gsc"
 
 type unsigned int: bool
 
diff --git a/lib/src/def.gem b/lib/src/def.gsc
similarity index 100%
rename from lib/src/def.gem
rename to lib/src/def.gsc
diff --git a/lib/src/io.gem b/lib/src/io.gsc
similarity index 99%
rename from lib/src/io.gem
rename to lib/src/io.gsc
index 1845a9c..db8de9b 100644
--- a/lib/src/io.gem
+++ b/lib/src/io.gsc
@@ -6,7 +6,7 @@
 # |         Generic Input/Output           |
 # `----------------------------------------`
 
-import "def.gem"
+import "def.gsc"
 
 # platform specific handle to an I/O device
 # can be a file, buffer, window or something else
diff --git a/lib/src/mem.gem b/lib/src/mem.gsc
similarity index 97%
rename from lib/src/mem.gem
rename to lib/src/mem.gsc
index e199c42..0307666 100644
--- a/lib/src/mem.gem
+++ b/lib/src/mem.gsc
@@ -6,7 +6,7 @@
 # |            Memory Management           |
 # `----------------------------------------`
 
-import "def.gem"
+import "def.gsc"
 
 # Allocate `len` bytes of heap memory
 # Returns a pointer to the memory as `ptr`
diff --git a/lib/src/os.gem b/lib/src/os.gsc
similarity index 93%
rename from lib/src/os.gem
rename to lib/src/os.gsc
index 9f51a45..bfd6958 100644
--- a/lib/src/os.gem
+++ b/lib/src/os.gsc
@@ -6,7 +6,7 @@
 # |           Operating System             |
 # `----------------------------------------`
 
-import "def.gem"
+import "def.gsc"
 
 # Return a hard coded C string identifying the underlying operating system
 # Will return one of the following:
diff --git a/lib/src/std.gem b/lib/src/std.gsc
similarity index 84%
rename from lib/src/std.gem
rename to lib/src/std.gsc
index e135a13..cf690e3 100644
--- a/lib/src/std.gem
+++ b/lib/src/std.gsc
@@ -7,10 +7,10 @@
 # `----------------------------------------`
 
 # standard type definitions
-import "def.gem"
+import "def.gsc"
 
 # I/O operations
-import "io.gem"
+import "io.gsc"
 
 # memory management
-import "mem.gem"
+import "mem.gsc"