diff --git a/apache/Dockerfile b/apache/Dockerfile
index 3c882e5..304a281 100644
--- a/apache/Dockerfile
+++ b/apache/Dockerfile
@@ -57,7 +57,7 @@ RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
 ADD "https://github.com/LimeSurvey/LimeSurvey/archive/${version}.tar.gz" /tmp
 
 RUN set -ex; \
-        echo "${sha256_checksum} /tmp/${version}.tar.gz" | sha256sum -c - && \
+        echo "${sha256_checksum}  /tmp/${version}.tar.gz" | sha256sum -c - && \
         \
         tar xzvf "/tmp/${version}.tar.gz" --strip-components=1 -C /var/www/html/ && \
         rm -f "/tmp/${version}.tar.gz" && \
diff --git a/fpm-alpine/Dockerfile b/fpm-alpine/Dockerfile
index 89933f0..d3e2ffb 100644
--- a/fpm-alpine/Dockerfile
+++ b/fpm-alpine/Dockerfile
@@ -30,7 +30,7 @@ RUN set -ex; \
 ADD "https://github.com/LimeSurvey/LimeSurvey/archive/${version}.tar.gz" /tmp
 
 RUN set -ex; \
-        echo "${sha256_checksum} /tmp/${version}.tar.gz" | sha256sum -c - && \
+        echo "${sha256_checksum}  /tmp/${version}.tar.gz" | sha256sum -c - && \
         \
         tar xzvf "/tmp/${version}.tar.gz" --strip-components=1 -C /var/www/html/ && \
         \
diff --git a/fpm/Dockerfile b/fpm/Dockerfile
index fb00935..09d1999 100644
--- a/fpm/Dockerfile
+++ b/fpm/Dockerfile
@@ -44,7 +44,7 @@ ENV LIMESURVEY_VERSION=$version
 ADD "https://github.com/LimeSurvey/LimeSurvey/archive/${version}.tar.gz" /tmp
 
 RUN set -ex; \
-        echo "${sha256_checksum} /tmp/${version}.tar.gz" | sha256sum -c - && \
+        echo "${sha256_checksum}  /tmp/${version}.tar.gz" | sha256sum -c - && \
         \
         tar xzvf "/tmp/${version}.tar.gz" --strip-components=1 -C /var/www/html/ && \
         rm -f "/tmp/${version}.tar.gz" && \