diff --git a/fhem/contrib/signal/signal_install.sh b/fhem/contrib/signal/signal_install.sh
index 21f761238..e97491610 100755
--- a/fhem/contrib/signal/signal_install.sh
+++ b/fhem/contrib/signal/signal_install.sh
@@ -172,7 +172,7 @@ fi
 GLIBC=`ldd --version |  grep -m1 -o '[0-9]\.[0-9][0-9]' | head -n 1`
 
 IDENTSTR=$ARCH-glibc$GLIBC-$LIBRARYVERSION
-KNOWN=("amd64-glibc2.28-0.11.2" "amd64-glibc2.31-0.11.2" "armhf-glibc2.28-0.11.2" "armhf-glibc2.31-0.11.2")
+KNOWN=("amd64-glibc2.27-0.11.2" "amd64-glibc2.28-0.11.2" "amd64-glibc2.31-0.11.2" "armhf-glibc2.28-0.11.2" "armhf-glibc2.31-0.11.2")
 
 GETLIBS=1
 if [[ ! " ${KNOWN[*]} " =~ " ${IDENTSTR} " ]]; then