diff --git a/src/common/console/c_bind.cpp b/src/common/console/c_bind.cpp
index f4802b1e5..609f2bf86 100644
--- a/src/common/console/c_bind.cpp
+++ b/src/common/console/c_bind.cpp
@@ -720,6 +720,7 @@ void C_SetDefaultKeys(const char* baseconfig)
 		ReadBindings(lump, true);
 	}
 
+	lastlump = 0;
 	while ((lump = fileSystem.FindLump("DEFBINDS", &lastlump)) != -1)
 	{
 		ReadBindings(lump, false);