diff --git a/build/interdep.c b/build/interdep.c
index a8e10db..89fba05 100644
--- a/build/interdep.c
+++ b/build/interdep.c
@@ -779,7 +779,7 @@ int processInterdep(Spec spec)
     r = freeRequires(r);
 
     r = makeRequires(spec, 2);
-    int optlevel = rpmExpandNumeric("%{?_deps_optimization}%{?!_deps_optimization:2}");
+    int optlevel = rpmExpandNumeric("%{?_deps_optimization}%{!?_deps_optimization:2}");
     if (optlevel >= 2) {
 	pruneExtraDeps(r, spec);
 	pruneExtraRDeps(r, spec);
diff --git a/build/reqprov.c b/build/reqprov.c
index 46b9a88..4d7f3fa 100644
--- a/build/reqprov.c
+++ b/build/reqprov.c
@@ -16,7 +16,7 @@ deps_opt_enabled (void)
 	if (!initialized)
 	{
 		initialized = 1;
-		enabled = rpmExpandNumeric ("%{?_deps_optimization}%{?!_deps_optimization:1}");
+		enabled = rpmExpandNumeric ("%{?_deps_optimization}%{!?_deps_optimization:1}");
 	}
 
 	return enabled;