diff --git a/var/spack/repos/builtin/packages/trimgalore/package.py b/var/spack/repos/builtin/packages/trimgalore/package.py
index fe51368934e..6374c9c6e43 100644
--- a/var/spack/repos/builtin/packages/trimgalore/package.py
+++ b/var/spack/repos/builtin/packages/trimgalore/package.py
@@ -41,5 +41,7 @@ class Trimgalore(Package):
     depends_on('fastqc')
 
     def install(self, spec, prefix):
+        filter_file(r'#!/usr/bin/perl', '#!/usr/bin/env perl', 'trim_galore')
+
         mkdirp(prefix.bin)
         install('trim_galore', prefix.bin)