diff --git a/configure.ac b/configure.ac
index e2baeb4..b9cc104 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,7 +123,7 @@ case "$host" in
 		LIBS="$LIBS -framework CoreFoundation"
 		app_cv_osname="macos"
 		LOGDIR="/var/log"
-		DLLEXT=".so"
+		DLLEXT=".dylib"
 		DLL_LDFLAGS="-shared -Wl,-install_name,\$(@F)"
 
 		INSTALL_PACKAGES="linux-lib ${INSTALL_PACKAGES}"
--
libgit2 0.21.2