diff --git a/easybuild/easyconfigs/c/casacore/casacore-3.5.0-foss-2023b.eb b/easybuild/easyconfigs/c/casacore/casacore-3.5.0-foss-2023b.eb
index d83d40387f2..741298d1488 100644
--- a/easybuild/easyconfigs/c/casacore/casacore-3.5.0-foss-2023b.eb
+++ b/easybuild/easyconfigs/c/casacore/casacore-3.5.0-foss-2023b.eb
@@ -52,7 +52,7 @@ sanity_check_paths = {
     'files': [
         'lib/libcasa_casa.%s' % SHLIB_EXT,
         'lib/libcasa_mirlib.%s' % SHLIB_EXT,
-         'lib/libcasa_ms.%s' % SHLIB_EXT,
+        'lib/libcasa_ms.%s' % SHLIB_EXT,
     ],
     'dirs': ['bin', 'include/%(name)s'],
 }
diff --git a/easybuild/easyconfigs/l/libidn2/libidn2-2.3.2-GCCcore-13.2.0.eb b/easybuild/easyconfigs/l/libidn2/libidn2-2.3.2-GCCcore-13.2.0.eb
index 042215912d5..fea33552f7a 100644
--- a/easybuild/easyconfigs/l/libidn2/libidn2-2.3.2-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/l/libidn2/libidn2-2.3.2-GCCcore-13.2.0.eb
@@ -18,7 +18,7 @@ builddependencies = [
 
 
 sanity_check_paths = {
-    'files': ['bin/idn2', 'lib/%(name)s.%s' % SHLIB_EXT],
+    'files': ['bin/idn2', 'lib/%s.%s' % (name, SHLIB_EXT)],
     'dirs': ['include'],
 }
 
diff --git a/easybuild/easyconfigs/p/PGPLOT/PGPLOT-5.2.2-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/PGPLOT/PGPLOT-5.2.2-GCCcore-13.2.0.eb
index d2e3d25fb6d..96edad22525 100644
--- a/easybuild/easyconfigs/p/PGPLOT/PGPLOT-5.2.2-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/PGPLOT/PGPLOT-5.2.2-GCCcore-13.2.0.eb
@@ -31,10 +31,10 @@ dependencies = [
 
 # create .so symlinks for shared libraries
 postinstallcmds = [
-    "cd %(installdir)s/lib && ln -s libcpgplot.%s.%(version)s libcpgplot.%s.5" % SHLIB_EXT,
-    "cd %(installdir)s/lib && ln -s libcpgplot.%s.%(version)s libcpgplot.%s" % SHLIB_EXT,
-    "cd %(installdir)s/lib && ln -s libpgplot.%s.%(version)s libpgplot.%s.5" % SHLIB_EXT,
-    "cd %(installdir)s/lib && ln -s libpgplot.%s.%(version)s libpgplot.%s" % SHLIB_EXT,
+    "cd %(installdir)s/lib && ln -s libcpgplot.%s.%(version)s libcpgplot.%s.5" % (SHLIB_EXT, SHLIB_EXT),
+    "cd %(installdir)s/lib && ln -s libcpgplot.%s.%(version)s libcpgplot.%s" % (SHLIB_EXT, SHLIB_EXT),
+    "cd %(installdir)s/lib && ln -s libpgplot.%s.%(version)s libpgplot.%s.5" % (SHLIB_EXT, SHLIB_EXT),
+    "cd %(installdir)s/lib && ln -s libpgplot.%s.%(version)s libpgplot.%s" % (SHLIB_EXT, SHLIB_EXT),
 ]
 files_to_copy = [
     (['pgdemo*'], 'bin'),