diff --git a/common_arm/Makefile.common b/common_arm/Makefile.common
index d6415dcda..e6d1636e9 100644
--- a/common_arm/Makefile.common
+++ b/common_arm/Makefile.common
@@ -34,7 +34,7 @@ OBJDIR = obj
 
 INCLUDE = -I../include -I../common_arm -I../common_fpga -I../common -I.
 
-# Also search prerequisites in the common directory (for usb.c), the fpga directory (for fpga.bit), and the zlib directory
+# Also search prerequisites in the common directory (for usb.c), the fpga directory (for fpga.bit), and the lz4 directory
 VPATH = . ../common_arm ../common ../common/crapto1 ../common/mbedtls ../common/lz4 ../fpga ../armsrc/Standalone
 
 INCLUDES = ../include/proxmark3_arm.h ../include/at91sam7s512.h ../include/config_gpio.h ../include/pm3_cmd.h
diff --git a/doc/fpga_arm_notes.md b/doc/fpga_arm_notes.md
index 48891408e..c066b316b 100644
--- a/doc/fpga_arm_notes.md
+++ b/doc/fpga_arm_notes.md
@@ -46,7 +46,7 @@ There is very rarely changes to the images so there is no need to setup a fpga t
 Since the FPGA is very old,  the Xilinix WebPack ISE 10.1  is the last working tool chain.  You can download this legacy development on xilinix and register for a free product installation id.
 Or use mine  `11LTAJ5ZJK3PXTUBMF0C0J6C4`    The package to download is about 7Gb and linux based.   Though I recently managed to install it on WSL for Windows 10.
 
-In order to save space,  these fpga images is zlib compressed and included in the fullimage.elf file when compiling the ARM SRC.  `make armsrc`
+In order to save space,  these fpga images are LZ4 compressed and included in the fullimage.elf file when compiling the ARM SRC.  `make armsrc`
 This means we save some precious space on the ARM but its a bit more complex when flashing to fpga since it has to decompress on the fly.  
 
 
@@ -246,4 +246,4 @@ IQ2 =  -1,1 :  1, 1   (falling)
              |
              |     (q1)
   -1,-1      |         1, -1
-```
\ No newline at end of file
+```