diff --git a/easybuild/easyconfigs/p/pblat/pblat-2.5.1-foss-2022b.eb b/easybuild/easyconfigs/p/pblat/pblat-2.5.1-foss-2022b.eb
index 1fee4320100..f832a56d7b2 100644
--- a/easybuild/easyconfigs/p/pblat/pblat-2.5.1-foss-2022b.eb
+++ b/easybuild/easyconfigs/p/pblat/pblat-2.5.1-foss-2022b.eb
@@ -22,10 +22,10 @@ dependencies = [
 ]
 
 # use HTSlib dependency provided through EasyBuild
-prebuildopts = "sed -i '5s/.\/htslib/$\{EBROOTHTSLIB\}\/include\/htslib/' Makefile && "
-prebuildopts += "sed -i '40s/ htslib\/libhts.a//' Makefile && "
-prebuildopts += "sed -i '41s/htslib\/libhts.a/-lhts -lcurl/' Makefile && "
-prebuildopts += "sed -i -e '/htslib\/libhts.a:/,+2d' Makefile && "
+prebuildopts = "sed -i '5s/.\\/htslib/$\\{EBROOTHTSLIB\\}\\/include\\/htslib/' Makefile && "
+prebuildopts += "sed -i '40s/ htslib\\/libhts.a//' Makefile && "
+prebuildopts += "sed -i '41s/htslib\\/libhts.a/-lhts -lcurl/' Makefile && "
+prebuildopts += "sed -i -e '/htslib\\/libhts.a:/,+2d' Makefile && "
 
 files_to_copy = [
     (['%(name)s'], 'bin'),