diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e26770d98fabfb624a060abb9968f92d39648065..dc3ae2333a311c6dccf92bfde1943ba3f3ce14d4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,8 @@ variables:
 
 build_binaries:
   stage: build
-  tags: dynare
+  tags:
+    - dynare
   script:
     - autoreconf -si
     - './configure --with-matlab=$(dirname $(dirname $(readlink -f `which matlab`))) MATLAB_VERSION=$(echo version | matlab -nodesktop -nodisplay -nosplash 2>/dev/null | sed -En "/ans\ =/!d;n;n;s/^[^0-9]*([0-9]+\.[0-9]+).*$/\1/;p")'
@@ -19,7 +20,8 @@ build_binaries:
 
 build_doc:
   stage: build
-  tags: dynare
+  tags:
+    - dynare
   script:
     - autoreconf -si
     - ./configure --disable-matlab --disable-octave
@@ -32,7 +34,8 @@ build_doc:
 
 testsuite_matlab:
   stage: test
-  tags: dynare
+  tags:
+    - dynare
   script:
     - autoreconf -si
     - './configure --disable-octave --with-matlab=$(dirname $(dirname $(readlink -f `which matlab`))) MATLAB_VERSION=$(echo version | matlab -nodesktop -nodisplay -nosplash 2>/dev/null | sed -En "/ans\ =/!d;n;n;s/^[^0-9]*([0-9]+\.[0-9]+).*$/\1/;p")'
@@ -52,7 +55,8 @@ testsuite_matlab:
 
 .testsuite_octave_template:
   stage: test
-  tags: dynare
+  tags:
+    - dynare
   variables:
     OPENBLAS_NUM_THREADS: 1
   script: