diff --git a/src/filter_realcugan.cpp b/src/filter_realcugan.cpp
index 95be9d0..37efd7e 100644
--- a/src/filter_realcugan.cpp
+++ b/src/filter_realcugan.cpp
@@ -32,10 +32,7 @@ FilterRealcugan::FilterRealcugan(
       model_name_(std::move(model_name)) {}
 
 FilterRealcugan::~FilterRealcugan() {
-    if (realcugan_) {
-        delete realcugan_;
-        realcugan_ = nullptr;
-    }
+    delete realcugan_;
 }
 
 int FilterRealcugan::init(AVCodecContext* dec_ctx, AVCodecContext* enc_ctx, AVBufferRef*) {
diff --git a/src/filter_realesrgan.cpp b/src/filter_realesrgan.cpp
index 0101b2e..9b5ce7f 100644
--- a/src/filter_realesrgan.cpp
+++ b/src/filter_realesrgan.cpp
@@ -26,10 +26,7 @@ FilterRealesrgan::FilterRealesrgan(
       model_name_(std::move(model_name)) {}
 
 FilterRealesrgan::~FilterRealesrgan() {
-    if (realesrgan_) {
-        delete realesrgan_;
-        realesrgan_ = nullptr;
-    }
+    delete realesrgan_;
 }
 
 int FilterRealesrgan::init(AVCodecContext* dec_ctx, AVCodecContext* enc_ctx, AVBufferRef*) {
diff --git a/src/interpolator_rife.cpp b/src/interpolator_rife.cpp
index 34b1708..08ac3c4 100644
--- a/src/interpolator_rife.cpp
+++ b/src/interpolator_rife.cpp
@@ -29,10 +29,7 @@ InterpolatorRIFE::InterpolatorRIFE(
       model_name_(std::move(model_name)) {}
 
 InterpolatorRIFE::~InterpolatorRIFE() {
-    if (rife_) {
-        delete rife_;
-        rife_ = nullptr;
-    }
+    delete rife_;
 }
 
 int InterpolatorRIFE::init(AVCodecContext* dec_ctx, AVCodecContext* enc_ctx, AVBufferRef*) {