diff --git a/libb2.spec b/libb2.spec
index 9b32166..ff4270a 100644
--- a/libb2.spec
+++ b/libb2.spec
@@ -46,7 +46,7 @@ and SHA-3, yet is at least as secure as the latest standard SHA-3.
 %package        devel
 Summary:        Development files for the Blake2 library
 Group:          Development/Libraries/C and C++
-Requires:       %{name} = %{version}-%{release}
+Requires:       %{name}-%{so_suffix} = %{version}-%{release}
 
 %description    devel
 %{summary}