diff --git a/Core/Util/TimeStretcher.cpp b/Core/Util/TimeStretcher.cpp
index 8e3556346596..d33a025df8a4 100644
--- a/Core/Util/TimeStretcher.cpp
+++ b/Core/Util/TimeStretcher.cpp
@@ -88,6 +88,7 @@ namespace AudioCore {
 
 	TimeStretcher::~TimeStretcher() {
 		impl->soundtouch.clear();
+		delete impl;
 	}
 
 	void TimeStretcher::SetOutputSampleRate(unsigned int sample_rate) {
diff --git a/Core/Util/TimeStretcher.h b/Core/Util/TimeStretcher.h
index b075063d6609..e72ca83edcb6 100644
--- a/Core/Util/TimeStretcher.h
+++ b/Core/Util/TimeStretcher.h
@@ -52,7 +52,7 @@ namespace AudioCore {
 
 	private:
 		struct Impl;
-		std::unique_ptr<Impl> impl;
+		Impl *impl;
 
 		/// INTERNAL: Clamp ratio within limits.
 		static double ClampRatio(double ratio);
diff --git a/Qt/Core.pro b/Qt/Core.pro
index 13827a029d01..97eb9e665dfe 100644
--- a/Qt/Core.pro
+++ b/Qt/Core.pro
@@ -44,6 +44,7 @@ SOURCES += $$P/Core/*.cpp \ # Core
 	$$P/Core/Util/GameManager.cpp \
 	$$P/Core/Util/ppge_atlas.cpp \
 	$$P/Core/Util/PPGeDraw.cpp \
+	$$P/Core/Util/TimeStretcher.cpp \
 	$$P/ext/libkirk/*.c \ # Kirk
 	$$P/ext/sfmt19937/*.c
 
@@ -62,6 +63,7 @@ HEADERS += $$P/Core/*.h \
 	$$P/Core/Util/GameManager.h \
 	$$P/Core/Util/ppge_atlas.h \
 	$$P/Core/Util/PPGeDraw.h \
+	$$P/Core/Util/TimeStretcher.h \
 	$$P/ext/libkirk/*.h \
 	$$P/ext/sfmt19937/*.h