diff --git a/Dockerfile b/Dockerfile
index d9ba9f7..6491ad9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ RUN mkdir -p /build/src
 
 ADD https://github.com/VirusTotal/yara/archive/v4.0.5.tar.gz /build/yara-4.0.5.tar.gz
 
-RUN apk add --no-cache automake libtool make gcc openssl pkgconfig
+RUN apk add --no-cache autoconf automake libtool make gcc openssl pkgconfig
 RUN cd /build; tar xvf yara-4.0.5.tar.gz; cd yara-4.0.5; ./bootstrap.sh; ./configure; make; make install
 
 ADD . /build/src