diff --git a/src/gba/cheats.c b/src/gba/cheats.c
index 6d12feca6..fd769adcb 100644
--- a/src/gba/cheats.c
+++ b/src/gba/cheats.c
@@ -575,6 +575,37 @@ bool GBACheatAddCodeBreakerLine(struct GBACheatSet* cheats, const char* line) {
 }
 
 bool GBACheatAddGameShark(struct GBACheatSet* set, uint32_t op1, uint32_t op2) {
+	uint32_t o1 = op1;
+	uint32_t o2 = op2;
+	switch (set->gsaVersion) {
+	case 0:
+		_setGameSharkVersion(set, 1);
+		// Fall through
+	case 1:
+		_decryptGameShark(&o1, &o2, set->gsaSeeds);
+		return _addGSA1(set, o1, o2);
+	}
+	return false;
+}
+
+bool GBACheatAddGameSharkLine(struct GBACheatSet* cheats, const char* line) {
+	uint32_t op1;
+	uint32_t op2;
+	line = _hex32(line, &op1);
+	if (!line) {
+		return false;
+	}
+	while (*line == ' ') {
+		++line;
+	}
+	line = _hex32(line, &op2);
+	if (!line) {
+		return false;
+	}
+	return GBACheatAddGameShark(cheats, op1, op2);
+}
+
+bool GBACheatAddAutodetect(struct GBACheatSet* set, uint32_t op1, uint32_t op2) {
 	uint32_t o1 = op1;
 	uint32_t o2 = op2;
 	switch (set->gsaVersion) {
@@ -603,7 +634,7 @@ bool GBACheatAddGameShark(struct GBACheatSet* set, uint32_t op1, uint32_t op2) {
 	return false;
 }
 
-bool GBACheatAddGameSharkLine(struct GBACheatSet* cheats, const char* line) {
+bool GBACheatAutodetectLine(struct GBACheatSet* cheats, const char* line) {
 	uint32_t op1;
 	uint32_t op2;
 	line = _hex32(line, &op1);
@@ -617,7 +648,7 @@ bool GBACheatAddGameSharkLine(struct GBACheatSet* cheats, const char* line) {
 	if (!line) {
 		return false;
 	}
-	return GBACheatAddGameShark(cheats, op1, op2);
+	return GBACheatAddAutodetect(cheats, op1, op2);
 }
 
 bool GBACheatParseFile(struct GBACheatDevice* device, struct VFile* vf) {
@@ -707,7 +738,7 @@ bool GBACheatAddLine(struct GBACheatSet* cheats, const char* line) {
 	uint32_t realOp2 = op2;
 	realOp2 <<= 16;
 	realOp2 |= op3;
-	return GBACheatAddGameShark(cheats, op1, realOp2);
+	return GBACheatAddAutodetect(cheats, op1, realOp2);
 }
 
 void GBACheatRefresh(struct GBACheatDevice* device, struct GBACheatSet* cheats) {
diff --git a/src/gba/cheats.h b/src/gba/cheats.h
index 588b030c8..ba83eaff0 100644
--- a/src/gba/cheats.h
+++ b/src/gba/cheats.h
@@ -192,6 +192,9 @@ bool GBACheatAddCodeBreakerLine(struct GBACheatSet*, const char* line);
 bool GBACheatAddGameShark(struct GBACheatSet*, uint32_t op1, uint32_t op2);
 bool GBACheatAddGameSharkLine(struct GBACheatSet*, const char* line);
 
+bool GBACheatAddAutodetect(struct GBACheatSet*, uint32_t op1, uint32_t op2);
+bool GBACheatAddAutodetectLine(struct GBACheatSet*, const char* line);
+
 bool GBACheatParseFile(struct GBACheatDevice*, struct VFile*);
 bool GBACheatAddLine(struct GBACheatSet*, const char* line);