diff --git a/cmake/GenVersion.cmake b/cmake/GenVersion.cmake
index 0e561de40..21aeab9df 100644
--- a/cmake/GenVersion.cmake
+++ b/cmake/GenVersion.cmake
@@ -30,14 +30,13 @@
 # Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
 # Check what commit we're on
-execute_process(COMMAND "${GIT}" rev-parse --short=9 HEAD RESULT_VARIABLE RET OUTPUT_VARIABLE COMMIT OUTPUT_STRIP_TRAILING_WHITESPACE)
+execute_process(COMMAND "${GIT}" rev-parse --short HEAD RESULT_VARIABLE RET OUTPUT_VARIABLE COMMIT OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 if(RET)
 	# Something went wrong, set the version tag to -unknown
     message(WARNING "Cannot determine current commit. Make sure that you are building either from a Git working tree or from a source archive.")
     set(VERSIONTAG "unknown")
 else()
-	string(SUBSTRING ${COMMIT} 0 9 COMMIT)
 	message(STATUS "You are currently on commit ${COMMIT}")
 
 	# Get all the tags