diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 8a19e5b60..3686f01d9 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -905,7 +905,7 @@ macro(CheckPTHREAD)
       set(PTHREAD_LDFLAGS "-lpthread")
     elseif(OPENBSD)
       set(PTHREAD_CFLAGS "-D_REENTRANT")
-      set(PTHREAD_LDFLAGS "-pthread")
+      set(PTHREAD_LDFLAGS "-lpthread")
     elseif(SOLARIS)
       set(PTHREAD_CFLAGS "-D_REENTRANT")
       set(PTHREAD_LDFLAGS "-pthread -lposix4")
diff --git a/configure b/configure
index 76d1d3e8a..072eedb83 100755
--- a/configure
+++ b/configure
@@ -26778,7 +26778,7 @@ fi
             ;;
         *-*-openbsd*)
             pthread_cflags="-D_REENTRANT"
-            pthread_lib="-pthread"
+            pthread_lib="-lpthread"
             ;;
         *-*-solaris2.9)
             # From Solaris 9+, posix4's preferred name is rt.
diff --git a/configure.ac b/configure.ac
index 5810b4f0f..6391bae84 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3063,7 +3063,7 @@ dnl This is used on Linux for glibc binary compatibility (Doh!)
             ;;
         *-*-openbsd*)
             pthread_cflags="-D_REENTRANT"
-            pthread_lib="-pthread"
+            pthread_lib="-lpthread"
             ;;
         *-*-solaris2.9)
             # From Solaris 9+, posix4's preferred name is rt.