diff --git a/GNUmakefile b/GNUmakefile
index c06b91ab..fa22984e 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -21,14 +21,8 @@ BUNDLETOOL = out/bundletool.jar
 
 HAVE_WIN := 0
 
-ifeq ($(shell test -d .git && which git > /dev/null && echo 1),1)
-export SOURCE_DATE_EPOCH=$(shell git log -1 --pretty=%ct)
-export TZ=UTC
-else
 export SOURCE_DATE_EPOCH=1
 export TZ=UTC
-endif
-$(info SOURCE_DATE_EPOCH=$(SOURCE_DATE_EPOCH))
 
 ifeq ($(UNAME_S),Darwin)
 BUILD_TYPES := macosdebug macosrelease iosdebug iosrelease iossimdebug iossimrelease