diff --git a/include/mgba/internal/gba/hardware.h b/include/mgba/internal/gba/hardware.h
index d3b222e77..88ae5c29b 100644
--- a/include/mgba/internal/gba/hardware.h
+++ b/include/mgba/internal/gba/hardware.h
@@ -71,8 +71,6 @@ DECL_BITS(RTCCommandData, Magic, 0, 4);
 DECL_BITS(RTCCommandData, Command, 4, 3);
 DECL_BIT(RTCCommandData, Reading, 7);
 
-#ifndef PYCPARSE
-#pragma pack(push, 1)
 struct GBARTC {
 	int32_t bytesRemaining;
 	int32_t transferStep;
@@ -83,10 +81,6 @@ struct GBARTC {
 	RTCControl control;
 	uint8_t time[7];
 };
-#pragma pack(pop)
-#else
-struct GBATRC;
-#endif
 
 struct GBAGBPKeyCallback {
 	struct mKeyCallback d;
diff --git a/include/mgba/internal/gba/serialize.h b/include/mgba/internal/gba/serialize.h
index cc46c47af..e901329bd 100644
--- a/include/mgba/internal/gba/serialize.h
+++ b/include/mgba/internal/gba/serialize.h
@@ -316,7 +316,14 @@ struct GBASerializedState {
 	struct {
 		uint16_t pinState;
 		uint16_t pinDirection;
-		struct GBARTC rtc;
+		int32_t rtcBytesRemaining;
+		int32_t rtcTransferStep;
+		int32_t rtcBitsRead;
+		int32_t rtcBits;
+		int32_t rtcCommandActive;
+		RTCCommandData rtcCommand;
+		RTCControl rtcControl;
+		uint8_t time[7];
 		uint8_t devices;
 		uint16_t gyroSample;
 		uint16_t tiltSampleX;
diff --git a/src/gba/hardware.c b/src/gba/hardware.c
index 92c3076f0..c69322dc4 100644
--- a/src/gba/hardware.c
+++ b/src/gba/hardware.c
@@ -623,14 +623,14 @@ void GBAHardwareSerialize(const struct GBACartridgeHardware* hw, struct GBASeria
 	STORE_16(hw->direction, 0, &state->hw.pinDirection);
 	state->hw.devices = hw->devices;
 
-	STORE_32(hw->rtc.bytesRemaining, 0, &state->hw.rtc.bytesRemaining);
-	STORE_32(hw->rtc.transferStep, 0, &state->hw.rtc.transferStep);
-	STORE_32(hw->rtc.bitsRead, 0, &state->hw.rtc.bitsRead);
-	STORE_32(hw->rtc.bits, 0, &state->hw.rtc.bits);
-	STORE_32(hw->rtc.commandActive, 0, &state->hw.rtc.commandActive);
-	STORE_32(hw->rtc.command, 0, &state->hw.rtc.command);
-	STORE_32(hw->rtc.control, 0, &state->hw.rtc.control);
-	memcpy(state->hw.rtc.time, hw->rtc.time, sizeof(state->hw.rtc.time));
+	STORE_32(hw->rtc.bytesRemaining, 0, &state->hw.rtcBytesRemaining);
+	STORE_32(hw->rtc.transferStep, 0, &state->hw.rtcTransferStep);
+	STORE_32(hw->rtc.bitsRead, 0, &state->hw.rtcBitsRead);
+	STORE_32(hw->rtc.bits, 0, &state->hw.rtcBits);
+	STORE_32(hw->rtc.commandActive, 0, &state->hw.rtcCommandActive);
+	STORE_32(hw->rtc.command, 0, &state->hw.rtcCommand);
+	STORE_32(hw->rtc.control, 0, &state->hw.rtcControl);
+	memcpy(state->hw.time, hw->rtc.time, sizeof(state->hw.time));
 
 	STORE_16(hw->gyroSample, 0, &state->hw.gyroSample);
 	flags1 = GBASerializedHWFlags1SetGyroEdge(flags1, hw->gyroEdge);
@@ -655,14 +655,14 @@ void GBAHardwareDeserialize(struct GBACartridgeHardware* hw, const struct GBASer
 	LOAD_16(hw->direction, 0, &state->hw.pinDirection);
 	hw->devices = state->hw.devices;
 
-	LOAD_32(hw->rtc.bytesRemaining, 0, &state->hw.rtc.bytesRemaining);
-	LOAD_32(hw->rtc.transferStep, 0, &state->hw.rtc.transferStep);
-	LOAD_32(hw->rtc.bitsRead, 0, &state->hw.rtc.bitsRead);
-	LOAD_32(hw->rtc.bits, 0, &state->hw.rtc.bits);
-	LOAD_32(hw->rtc.commandActive, 0, &state->hw.rtc.commandActive);
-	LOAD_32(hw->rtc.command, 0, &state->hw.rtc.command);
-	LOAD_32(hw->rtc.control, 0, &state->hw.rtc.control);
-	memcpy(hw->rtc.time, state->hw.rtc.time, sizeof(hw->rtc.time));
+	LOAD_32(hw->rtc.bytesRemaining, 0, &state->hw.rtcBytesRemaining);
+	LOAD_32(hw->rtc.transferStep, 0, &state->hw.rtcTransferStep);
+	LOAD_32(hw->rtc.bitsRead, 0, &state->hw.rtcBitsRead);
+	LOAD_32(hw->rtc.bits, 0, &state->hw.rtcBits);
+	LOAD_32(hw->rtc.commandActive, 0, &state->hw.rtcCommandActive);
+	LOAD_32(hw->rtc.command, 0, &state->hw.rtcCommand);
+	LOAD_32(hw->rtc.control, 0, &state->hw.rtcControl);
+	memcpy(hw->rtc.time, state->hw.time, sizeof(hw->rtc.time));
 
 	LOAD_16(hw->gyroSample, 0, &state->hw.gyroSample);
 	hw->gyroEdge = GBASerializedHWFlags1GetGyroEdge(flags1);
diff --git a/src/platform/python/_builder.py b/src/platform/python/_builder.py
index 85afe7a29..a69f65616 100644
--- a/src/platform/python/_builder.py
+++ b/src/platform/python/_builder.py
@@ -66,18 +66,6 @@ for line in preprocessed.splitlines():
     lines.append(line)
 ffi.cdef('\n'.join(lines))
 
-ffi.cdef("""
-struct GBARTC {
-    int32_t bytesRemaining;
-    int32_t transferStep;
-    int32_t bitsRead;
-    int32_t bits;
-    int32_t commandActive;
-    RTCCommandData command;
-    RTCControl control;
-    uint8_t time[7];
-};""", packed=True)
-
 preprocessed = subprocess.check_output(cpp + ["-fno-inline", "-P"] + cppflags + [os.path.join(pydir, "lib.h")], universal_newlines=True)
 
 lines = []