diff --git a/f4pga/__init__.py b/f4pga/__init__.py
index 91b4df2..fa63294 100755
--- a/f4pga/__init__.py
+++ b/f4pga/__init__.py
@@ -570,7 +570,10 @@ def get_platform_name_for_part(part_name: str):
     differ only in a type of package they use.
     """
     with (Path(mypath) / 'part_db.json').open('r') as rfptr:
-        return json_load(rfptr).get(part_name.upper())
+        for key, val in json_load(rfptr).items():
+            if part_name.upper() in val:
+                return key
+        raise(Exception(f"Unknown part name <{part_name}>!"))
 
 def make_flow_config(project_flow_cfg: ProjectFlowConfig, part_name: str) -> FlowConfig:
     """ Create `FlowConfig` from given project flow configuration and part name """
diff --git a/f4pga/part_db.json b/f4pga/part_db.json
index ff34555..072d51b 100644
--- a/f4pga/part_db.json
+++ b/f4pga/part_db.json
@@ -1,23 +1,34 @@
 {
-    "XC7A50TCSG324-1": "xc7a50t",
-    "XC7A35TCSG324-1": "xc7a50t",
-    "XC7A35TCPG236-1": "xc7a50t",
-    "XC7A100TCSG324-1": "xc7a100t",
-    "XC7A100TFGG484-2": "xc7a100t",
-    "XC7A200TSBG484-1": "xc7a200t",
-
-    "XC7C010CLG400-1": "xc7z010t",
-
-    "EOS3FF512-PDN64": "ql-eos-s3",
-    "EOS3FF512-WRN42": "ql-eos-s3",
-    "EOS3FLF512-PDN64": "ql-eos-s3",
-    "EOS3FLF512-WRN42": "ql-eos-s3",
-    "EOS3CF512-PDN64": "ql-eos-s3",
-    "EOS3CF512-WRN42": "ql-eos-s3",
-    "EOS3CLF512-PDN64": "ql-eos-s3",
-    "EOS3CLF512-WRN42": "ql-eos-s3",
-
-    "K4N8": "ql-k4n8_slow",
-    "K4N8_SLOW": "ql-k4n8_slow",
-    "K4N8_FAST": "ql-k4n8_fast"
-}
\ No newline at end of file
+    "xc7a50t": [
+        "XC7A50TCSG324-1",
+        "XC7A35TCSG324-1",
+        "XC7A35TCPG236-1"
+    ],
+    "xc7a100t": [
+        "XC7A100TCSG324-1",
+        "XC7A100TFGG484-2"
+    ],
+    "xc7a200t": [
+        "XC7A200TSBG484-1"
+    ],
+    "xc7z010t": [
+        "XC7C010CLG400-1"
+    ],
+    "ql-eos-s3": [
+        "EOS3FF512-PDN64",
+        "EOS3FF512-WRN42",
+        "EOS3FLF512-PDN64",
+        "EOS3FLF512-WRN42",
+        "EOS3CF512-PDN64",
+        "EOS3CF512-WRN42",
+        "EOS3CLF512-PDN64",
+        "EOS3CLF512-WRN42"
+    ],
+    "ql-k4n8_slow": [
+        "K4N8",
+        "K4N8_SLOW"
+    ],
+    "ql-k4n8_fast": [
+        "K4N8_FAST"
+    ]
+}