diff --git a/pkgs/development/libraries/libguestfs/default.nix b/pkgs/development/libraries/libguestfs/default.nix
index ebb431ae199a..1ad302e439f8 100644
--- a/pkgs/development/libraries/libguestfs/default.nix
+++ b/pkgs/development/libraries/libguestfs/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   strictDeps = true;
   nativeBuildInputs = [
     autoreconfHook bison cdrkit cpio flex getopt gperf makeWrapper pkg-config qemu
-  ] ++ (with perlPackages; [ perl libintl_perl GetoptLong SysVirt ])
+  ] ++ (with perlPackages; [ perl libintl-perl GetoptLong SysVirt ])
     ++ (with ocamlPackages; [ ocaml findlib ]);
   buildInputs = [
     ncurses jansson
diff --git a/pkgs/servers/mail/sympa/default.nix b/pkgs/servers/mail/sympa/default.nix
index 5272b389b2b3..8387f2eb9cf6 100644
--- a/pkgs/servers/mail/sympa/default.nix
+++ b/pkgs/servers/mail/sympa/default.nix
@@ -24,7 +24,7 @@ let
     IO
     IOStringy
     LWP
-    libintl_perl
+    libintl-perl
 
     MHonArc
     MIMECharset
diff --git a/pkgs/servers/openxpki/default.nix b/pkgs/servers/openxpki/default.nix
index bdf12a1f923c..1477e07ee441 100644
--- a/pkgs/servers/openxpki/default.nix
+++ b/pkgs/servers/openxpki/default.nix
@@ -15,7 +15,7 @@ perlPackages.buildPerlPackage {
   buildInputs = [ perl openssl gettext python3Packages.sphinx ];
   propagatedBuildInputs = with perlPackages;
     [ # dependencies from Makefile.PL
-      libintl_perl ConfigVersioned LWP ClassAccessorChained IOSocketSSL ClassStd
+      libintl-perl ConfigVersioned LWP ClassAccessorChained IOSocketSSL ClassStd
       CGISession ConfigStd ConfigMerge Connector CryptCBC CryptOpenSSLAES CryptPKCS10
       DBDMock DataPassword DataSerializer DateTimeFormatDateParse IOPrompt
       IPCShareLite JSON LogLog4perl LWPProtocolConnect LWPProtocolHttps MailRFC822Address
diff --git a/pkgs/tools/misc/fntsample/default.nix b/pkgs/tools/misc/fntsample/default.nix
index 4f67d564e452..a124d0808415 100644
--- a/pkgs/tools/misc/fntsample/default.nix
+++ b/pkgs/tools/misc/fntsample/default.nix
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
         ExporterTiny
         ListMoreUtils
         PDFAPI2
-        libintl_perl
+        libintl-perl
       ];
     in ''
     for cmd in pdfoutline pdf-extract-outline; do
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 96203b0be038..2cc19753271a 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -852,7 +852,7 @@ let
       sha256 = "ee146cd75d6300837e6ca559bb0bde247d42123c96b2c5d4b2800f38d3e3d1ab";
     };
     buildInputs = [ CaptureTiny TestDeep TestDir TestException TestFile TestFileContents TestMockModule TestMockObject TestNoWarnings TestWarn ];
-    propagatedBuildInputs = [ Clone ConfigGitLike DBI DateTime EncodeLocale HashMerge IOPager IPCRun3 IPCSystemSimple ListMoreUtils PathClass PerlIOutf8_strict PodParser StringFormatter StringShellQuote TemplateTiny Throwable TypeTiny URIdb libintl_perl ];
+    propagatedBuildInputs = [ Clone ConfigGitLike DBI DateTime EncodeLocale HashMerge IOPager IPCRun3 IPCSystemSimple ListMoreUtils PathClass PerlIOutf8_strict PodParser StringFormatter StringShellQuote TemplateTiny Throwable TypeTiny URIdb libintl-perl ];
     doCheck = false;  # Can't find home directory.
     meta = {
       homepage = "https://sqitch.org/";
@@ -11760,7 +11760,7 @@ let
     };
   };
 
-  libintl_perl = buildPerlPackage {
+  libintl-perl = buildPerlPackage {
     pname = "libintl-perl";
     version = "1.32";
     src = fetchurl {
@@ -18612,7 +18612,7 @@ let
       url = "mirror://cpan/authors/id/K/KR/KRYDE/podlinkcheck-15.tar.gz";
       sha256 = "4e3bebec1bf82dbf850a94ae26a253644cf5806ec41afc74e43e1710a37321db";
     };
-    propagatedBuildInputs = [ FileFindIterator FileHomeDir IPCRun PodParser constant-defer libintl_perl ];
+    propagatedBuildInputs = [ FileFindIterator FileHomeDir IPCRun PodParser constant-defer libintl-perl ];
     meta = {
       homepage = "http://user42.tuxfamily.org/podlinkcheck/index.html";
       description = "Check POD L<> link references";
@@ -25222,7 +25222,8 @@ let
   EmailMIMEModifier = self.EmailMIME;
   ExtUtilsCommand = self.ExtUtilsMakeMaker;
   IOstringy = self.IOStringy;
-  libintlperl = self.libintl_perl;
+  libintl_perl = self.libintl-perl;
+  libintlperl = self.libintl-perl;
   LWPProtocolconnect = self.LWPProtocolConnect;
   LWPProtocolhttps = self.LWPProtocolHttps;
   LWPUserAgent = self.LWP;