diff --git a/macros.perl b/macros.perl
index 77cc30cce8eff5268d331317de2168be0768b9b4..3808adef7e7152db35499eac72eafb331e267348 100644
--- a/macros.perl
+++ b/macros.perl
@@ -179,8 +179,8 @@ This package provides the test suite for package %{name}.\
 # Expands to the cpanhosted URL for a package
 # Accepts zero to three arguments:
 # 1:  The CPAN project name, defaulting to %%srcname if it is defined, then
-#     %%cpan_name if it is defined, then just %%name with "perl-" prefix
-#     removed.
+#     %%mod_name if it is defined, then just try %%cpan_name, and %%name with
+#     "perl-" prefix removed.
 # 2:  The MetaCPAN project version, defaulting to %%version.
 # 3:  The file extension, defaulting to "tar.gz".  (A period will be added
 #     automatically.)
@@ -196,7 +196,7 @@ This package provides the test suite for package %{name}.\
 %__cpan_default_extension tar.gz
 
 %cpan_source() %{lua:
-    local src = rpm.expand('%1')
+    local src = rpm.expand('%1'):gsub('^perl%-','')
     local ver = rpm.expand('%2')
     local ext = rpm.expand('%3')
     local url = rpm.expand('%__cpan_url')
@@ -207,14 +207,17 @@ This package provides the test suite for package %{name}.\
         src = rpm.expand('%srcname')
     end
     if src == '%srcname' then
+        src = rpm.expand('%mod_name')
+    end
+    if src == '%mod_name' then
         src = rpm.expand('%cpan_name')
     end
     if src == '%cpan_name' then
         src = rpm.expand('%name'):gsub('^perl%-','')
     end
     local prefix
-    if string.match(src, '^(.+)%-') then
-        prefix = string.match(src, '^(.+)%-')
+    if string.match(src, '^([^-]+)%-') then
+        prefix = string.match(src, '^([^-]+)%-')
     else
         prefix = src
     end
diff --git a/openEuler-rpm-config.spec b/openEuler-rpm-config.spec
index 8ea54d29c06d2646f20b051d7663d819ab4e2f68..ce92edfc1c80ddb6afa575c84caf218755ce3bd9 100644
--- a/openEuler-rpm-config.spec
+++ b/openEuler-rpm-config.spec
@@ -3,7 +3,7 @@
 
 Name:		%{vendor}-rpm-config
 Version:	31
-Release:	40
+Release:	41
 License:	GPL+ AND MIT
 Summary:	specific rpm configuration files
 URL:		https://gitee.com/src-openeuler/openEuler-rpm-config
@@ -213,6 +213,9 @@ sed -i "s|@OSCPE@|$(cat /etc/system-release-cpe)|" %{buildroot}%{rpmvdir}/%{vend
 %{rpmvdir}/find-requires.ksyms
 
 %changelog
+* Sat Nov 01 2025 Funda Wang <fundawang@yeah.net> - 31-41
+- fix name manipulation when cpan_source parameter given
+
 * Wed Oct 15 2025 Funda Wang <fundawang@yeah.net> - 31-40
 - only display pkgconfig audit log when it is generated