diff --git a/src/aclocal.m4 b/src/aclocal.m4
index 9812e733f..e6aa08b71 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -257,6 +257,7 @@ case "${host_os}" in
 		;;
 	netbsd*)
 		thehost='netbsd'
+		THREAD_LIBS='-lpthread'
 		SHARED_LDFLAGS="-shared ${LDFLAGS}"
 		BUNDLE_LDFLAGS="-shared ${LDFLAGS}"
 		LDRPATH="-Wl,--rpath,~A"
diff --git a/src/configure b/src/configure
index 6ab7c3685..411faae0f 100755
--- a/src/configure
+++ b/src/configure
@@ -4404,6 +4404,7 @@ case "${host_os}" in
 		;;
 	netbsd*)
 		thehost='netbsd'
+		THREAD_LIBS='-lpthread'
 		SHARED_LDFLAGS="-shared ${LDFLAGS}"
 		BUNDLE_LDFLAGS="-shared ${LDFLAGS}"
 		LDRPATH="-Wl,--rpath,~A"